'Vaping' pilot caused Air China plane to plunge 6,500m Image copyright Reuters Image caption Air China is one of the country's main carriers A co-pilot smoking an e-cigarette on an Air China flight caused the plane to start a rapid emergency descent, investigators have said.
They say he tried to hide the fact that he was smoking but accidentally shut off the air-conditioning, causing oxygen levels to fall.
The crew on Tuesday's flight from Hong Kong to the city of Dalian released oxygen masks and brought the plane more than 6,500m (21.000ft) lower.
It later returned to cruising altitude.
An initial probe by China's Civil Aviation Administration in China has shown that the co-pilot tried to turn off a fan to stop smoke reaching the passenger cabin without telling the captain, but turned off the air-conditioning unit instead.
Passengers say they were told to fasten their seat belts as the plane had to descend.
Image copyright Weibo Image caption People posted i..
China industrial park explosion kills 19 An explosion at an industrial park in China's Sichuan province has left 19 people dead and 12 others injured, according to state news agency Xinhua.
In a statement quoted by Reuters, the authorities in Jiang'an county said the blast happened at a chemical plant run by Yibin Hengda Technology.
Photos on Chinese social media showed a huge fire and plumes of smoke rising from the facility.
It is not clear what caused the explosion.
It follows previous high-profile disasters at chemical plants in China.
In 2015, 173 people died in an explosion in a chemical warehouse in the north-eastern port city of Tianjin.
The 'vegetarian' mutton curry that unites Bengalis Image copyright Rajyasree Sen Image caption East and West Bengal have long been arguing over who boasts a better cuisine Bengalis, people from the Indian state of West Bengal and Bangladesh, constantly war over which of the two regions boasts the better cuisine. Columnist Rajyasree Sen traces this culinary clash through her own family's history.
I grew up in a home with grandparents from both sides of the border - my paternal grandmother was from erstwhile East Bengal, which is now Bangladesh, and her husband, my grandfather, was from West Bengal.
Bengal, a vast and fertile province, was partitioned in 1947 when India became independent from the British. The largely Hindu western part remained with India while the predominantly Muslim eastern half joined Pakistan. Then in 1971, East Bengal split from Pakistan to become an independent country, Bangladesh.
But wherever they may live, a Bengali who doesn't have an opi..
Ex-Pakistan PM Nawaz Sharif returns to face 'jail cell' Image copyright EPA Image caption Supporters were outraged when Nawaz Sharif was handed a 10-year jail sentence last week Ousted Pakistani leader Nawaz Sharif is returning to Pakistan despite facing a 10-year jail sentence for corruption.
Sharif and his daughter Maryam both face arrest when they arrive back in Lahore from London on Friday.
The three-term PM was ousted from office last year after a corruption investigation. He was sentenced in absentia to 10 years last week.
He has accused Pakistan's security establishment of conspiring against him ahead of July 25 elections.
"There was a time when we used to say a state within a state, now it's a state above the state," he told supporters of his Pakistan Muslim League-Nawaz (PML-N) party in London on Wednesday.
"Despite seeing the bars of prison in front of my eyes, I am going to Pakistan."
Thousands of supporters are expected to flock to the airport to greet ..
India Christian priests arrested over rape charge Image copyright Getty Images Image caption Police are yet to arrest the other two priests Two of four Indian priests charged with allegedly raping a woman have surrendered to police in the southern state of Kerala.
The Kerala high court denied bail to both of them and one other priest, who is also expected to surrender later on Thursday.
The woman, 32, was allegedly raped and blackmailed in exchange for sexual acts.
Police are yet to arrest the fourth priest.
The allegations came to light in February when her husband found out about the blackmail.
The police complaint was filed on 2 June after an audio clip of a conversation between the woman's husband and a church official went viral.
India's code of silence over sexual abuse Why an MP wants India to talk about child sex abuse "Consent obtained through blackmail is rape," a police officer told BBC Hindi's Imran Qureshi. He added that the woman's husband had com..
India adopts 'world's strongest' net neutrality norms Image copyright Getty Images Image caption Net neutrality ensures that users can access all websites at the same speed and cost India has adopted recommendations strongly backing net neutrality that experts say could be the "strongest" in the world.
Net neutrality means service providers must treat all traffic equally, and not charge differently based on content.
The recommendations explicitly forbid operators from throttling data speeds for any online service, and mandates all content be treated the same.
India is expected to have 500 million internet users by June.
"Any deviations and violations of the rules of net neutrality -- which come into effect almost immediately -- will be met with stiff penalties," telecom secretary Aruna Sundarajan told Indian reporters.
The net neutrality principle is considered a cornerstone of a free and open internet that provides equal access to all and bans "any form" of data di..
Pakistan election: Bhutto outlines 'peaceful, progressive' vision Image caption Bilawal Bhutto Zardari says there is decreasing space for freedom in Pakistan The son of assassinated former Pakistani PM Benazir Bhutto has told the BBC he is campaigning to implement her vision of a "peaceful, progressive, prosperous, democratic Pakistan".
Bilawal Bhutto Zardari, chairman of the Pakistan People's Party (PPP), is standing for parliament for the first time in the 25 July general election.
Ms Bhutto was killed by a suicide bomber at a rally in 2007.
Levels of support for the party have dropped in recent years, analysts say.
Mr Bhutto Zardari was appointed as joint leader of the PPP shortly after his mother's death, alongside his father Asif Ali Zardari.
He is the third generation of his family to enter politics, his grandfather Zulfiqar Ali Bhutto having served as prime minister in the 1970s before he was executed by military dictator General Ziaul Haq.
China investigates why plane dropped more than 6,000m Image copyright Reuters Image caption File picture of another Air China aircraft Chinese authorities are investigating why a plane was forced to drop more than 6,500m (21,000ft) due to loss of cabin pressure.
The Air China flight from Hong Kong to Dalian lost altitude rapidly and oxygen masks dropped in the cabin.
The plane then returned to cruising altitude and continued as scheduled.
There is speculation in local media that crew had been smoking in the cockpit and then mishandled the ventilation system.
Chinese aviation authorities are now look into both the flight data recorder and the cockpit voice recorder to determine what caused the incident.
Several passengers of the Tuesday flight posted pictures of the dropped oxygen masks on social media.
Image copyright Weibo Image caption Despite the incident, people remained calm According to some people on board, cited on Chinese media, passengers were told to fasten their seat ..