Raids mounted on fake Indian tech support centres Image copyright Getty Images Image caption The bogus support calls typically claim to find problems with Microsoft Windows More than 50 people have been arrested in India for their alleged involvement in fake security warning scams.
The New York Times said that Delhi police made the arrests during raids on 26 call centres linked to the scams.
Software giant Microsoft helped police trace who was behind the large-scale operations.
It said it received more than 11,000 calls per month about fake security warnings and that many people lost significant sums to the fraudsters.
"This is an organised crime," Courtney Gregoire, an assistant general counsel in Microsoft's digital crimes unit told the US newspaper.
Microsoft has estimated that fraudsters make about $1.5bn (£1.2bn) a year through fake Windows support calls.
Media playback is unsupported on your device Media captionWhat happened when sextortion scammers targeted a BBC Trendin..
Whale stranding: Another 50 pilot whales die off NZ Image copyright DoC Image caption The only surviving whale was too badly injured ill to be rescued Fifty-one pilot whales have died after becoming stranded on a beach on the Chatham Islands off New Zealand.
The mass stranding means more than 200 whales have died in separate incidents over the past week in the region.
New Zealand's Department of Conservation says between 80 and 90 whales were found to have become stranded in Hanson Bay on Thursday.
Several dozen managed to refloat themselves but 50 were found dead and one had to be put down.
'The night I found 145 stranded whales'"There was no likelihood of being able to successfully save the remaining whale. Sadly, the decision was made to euthanise. It was the most humane thing to do," said DOC's Chatham Islands Operations Manager, Dave Carlton.
"This is always an awful decision to have to make."
Image copyright DoC Image caption The dead are being buried close..
South Korean train crosses DMZ into North Korea Image copyright Getty Images For the first time in more than a decade, a train has travelled from South Korea across the heavily guarded border into North Korea.
On board is a team of South Korean experts investigating ways to help North Korea modernise its rail network.
The two Koreas have made significant progress in improving their relationship over the past year.
The hope is that it will eventually become easier to travel and trade across the border.
Image copyright Getty Images Image caption The train had to make its way over one of the most heavily guarded borders in the world Image copyright EPA Image caption South Korean officials say opening the line will improve peace and prosperity on both sides Image copyright Getty Images When the leaders of North and South Korea had their historic meeting in April, North Korea's Kim Jong-un asked for help with updating his country's railways, which he said were in an "embarrassi..
Carmichael project: Visiting Australia's controversial Adani mine Image caption The mine project is on a piece of barren land Indian energy giant Adani has announced that it will begin work on a controversial coal mine project in Australia. Earlier this year, BBC Hindi's Vineet Khare visited the area and details what he witnessed there.
The route to the Carmichael mine is a long lonely ride in the wilderness - a paved road transforms into a wide dirt track before you eventually reach the remote piece of land which has so divided Australia.
The $12.5bn (£9.8bn) Carmichael project coal site in Queensland state is nearly 400km (248 miles) inland from the eastern coast. It's in the Mackay region, which is home to other mining projects.
The project has been delayed for six years because of a series of legal challenges and reports evaluating its environmental impact. It's owned by the Adani group, whose chairman, Gautam Adani, is considered to be close to Indian Prime Mi..
Benoît Quennedey: French official charged with spying for N Korea Image copyright AFP Image caption Benoît Quennedey is president of the Franco-Korean Friendship Association A French civil servant has been placed under formal criminal investigation on suspicion of spying for North Korea.
Benoît Quennedey is suspected of treason and "supplying information to a foreign power". He faces up to 10 years in jail if found guilty.
Mr Quennedey holds a senior position in the French Senate's department of architecture, heritage and gardens.
He is also president of the Franco-Korean Friendship Association, which promotes closer ties with North Korea.
In recent years he has written books on the country, including North Korea's Economy: Birth of New Asian Dragon (2013).
Mr Quennedey has travelled several times to Pyongyang in recent years and met officials and academics working in the architecture and construction fields, according to his association's website.
Following his arrest ..
Climate change: Australian students skip school for mass protest Image caption Students protest in central Sydney on Friday School students across Australia have gathered for a high-profile protest to urge greater action on climate change.
Thousands of students were expected to skip school on Friday to highlight what they say are inadequate policies by the Australian government.
On Monday, Australian PM Scott Morrison rebuked their plans for "activism" during school hours and insisted his government was tackling climate change.
Many students said his remarks had bolstered their resolve to protest.
"We will be the ones suffering the consequences of the decisions they [politicians] make today," protester Jagveer Singh, 17, told the BBC.
Organisers say they were inspired by Greta Thunberg, a 15-year-old girl in Sweden who has undertaken similar protests.
Image caption Many students urged a more rapid transition to renewable energy Australia has committed to reducing its emissions by 26-..
'Gene-edited babies': China halts work of He Jiankui Image copyright AFP Image caption Prof He says there is a potential second pregnancy China has halted the work of the scientist who claims to have created the world's first genetically edited babies, and says it will investigate.
He Jiankui caused outrage earlier this week when he told a genome summit he had altered the genes of twin baby girls so they could not contract HIV.
His statement has not been confirmed, but if true breaks tight rules around the use of gene editing in humans.
Prof He's university said it was unaware of his experiment.
The Southern University of Science and Technology in Shenzhen said earlier in the week he had been on unpaid leave since February, and it would be investigating the claims.
On Thursday, China's science ministry said it had "demanded that the relevant organisation suspend the scientific activities of relevant personnel".
The National Health Commission has already said P..
Trump's trade war: Stakes are high at G20 summit Image copyright Getty Images Image caption US President Donald Trump and China's President Xi Jinping are due to meet again this week The stakes are high at this week's G20 summit, where President Trump is due to meet China's President Xi Jinping.
Hopes that the meeting could open the way for a deal over trade between the two countries have been undermined by recent threats by the US president.
Only days before the summit in Argentina, President Trump said current tariff levels on $200bn (£157bn) of Chinese imports would rise as planned.
He also threatened tariffs on $267bn of other Chinese exports to the US.
The stage could now be set for a possible escalation of the trade war between the two nations.
Trump talks tough on China before G20 US-China trade row: What has happened so far? Grappling with China's growing power What is likely to come out of the meeting?President Trump started the dispute with China ear..
Sabarimala: India activist held for 'explicit' thigh photo Image copyright Rehana Fathima Image caption The selfie Rehana Fathima posted on Facebook An Indian woman who made an unsuccessful attempt last month to enter one of Hinduism's holiest temples has been arrested and charges against her include "exposing her thigh" in a photograph she posted on Facebook while on her way to the shrine.
Rehana Fathima, 32-year-old telecom technician, activist and model, was stopped by protesters from entering the Sabarimala shrine which has historically been closed to all women of "menstruating age".
Hinduism regards menstruating women as unclean and bars them from participating in religious rituals. The shrine management says the ban on women is also because the temple deity Lord Ayyappa was a bachelor.
In September, India's Supreme Court overturned the ban, allowing women of all ages to visit the temple.
In October, Ms Fathima and a female journalist, protected by more than 1..