A stand-off is continuing between police and students at the Hong Kong Polytechnic University. Police have surrounded the campus in central Kowloon, and all roads in and out are blocked.
Some students have braved police tear gas and rubber bullets to escape, others have escaped by abseiling from a bridge and getting away on the back of motorbikes. Many are still holed up inside the Polytechnic building, where supplies are said to be running low. Meantime, China has warned "no-one should underestimate [its] will to safeguard its sovereignty and Hong Kong's stability".
Freelance Hong Kong correspondent Oliver Farry has been at the campus tonight.