Hong Kong Polytechnic University: Campus clashes as protest intensifies - BBC News
Police remain locked in a stand-off at a major university with hundreds of protesters inside.
More from the Chinese Ambassador to the UK's news conference in London. Liu Xiaoming accused the British government of taking sides in the Hong Kong protests.

"We have made our position known to the British side when they have made irresponsible remarks on Hong Kong. I think when the British government criticise Hong Kong police, criticise the Hong Kong government in handling the situation they are interfering into China's internal affairs.

"They look like they are balanced but as a matter of fact they are taking sides. That is our position."

As he was speaking at the Chinese embassy, the UK Foreign Office issue a statement, saying the government was seriously concerned by the escalation in violence from both the protesters and the authorities.