Fiery clashes erupted across the city, with security chief John Lee cautioning "unthinkable" consequences if the violence continued.
Authorities have shut down schools, rail links and several businesses in the Asian financial hub as a safety precaution.
On Tuesday night, hundreds of black-clad protesters tried to block riot police from entering the Chinese University of Hong Kong (CUHK) near Tai Po by hurling bricks and petrol bombs.
Israel's defence minister says military operations in Lebanon will continue despite ceasefire
Israel's military will continue to carry out operations in Lebanon for the time being and will not be withdrawing from the country, Defence Minister Israel Katz said on Thursday, despite the announcement of a new ceasefire.
Delhi to crack down on fire safety violations after blaze that killed 21
The government in the Indian capital city of Delhi will launch a crackdown on properties violating fire safety norms after a hotel fire killed 21 people on Wednesday, including 12 foreign nationals, the chief minister's office said.
Kuwait cuts Iran embassy staff, declares two diplomats 'persona non grata'
The Kuwaiti Ministry of Foreign Affairs has handed a formal protest note to Iran’s acting chargé d’affaires in the country, addressing the continued Iranian missile and drone attacks.
All EU members greenlight first step in accession talks, Ukraine PM says
All members of the European Union agreed to open talks with Ukraine and Moldova on the first cluster of issues in their accession talks, Ukrainian Prime Minister Yulia Svyrydenko said early on Thursday.
North Korea's Kim calls for 'exponential' nuclear expansion
North Korean leader Kim Jong Un has called for an "exponential" expansion of the country's atomic arsenal during a visit to a newly operational nuclear material production factory, state media agency KCNA said on Thursday.
