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.
Passenger bus crash in Indonesia kills at least 16 people
A passenger bus crash has killed at least 16 people on Indonesia’s main island of Java just after midnight Monday, officials said.
Japan prepares to restart world's biggest nuclear plant
Japan has taken the final step to allow the world's largest nuclear power plant to resume operations with a regional vote on Monday, a watershed moment in the country's return to nuclear energy nearly 15 years after the Fukushima disaster.
Remaining 130 abducted Nigerian students have been released, official says
The remaining 130 Nigerian schoolchildren abducted in November from a school have been released, President Bola Tinubu's spokesperson said on Sunday, following one of the country's biggest mass kidnappings of recent years.
Failed homemade bombs thrown before Bondi shooting, police tell court
Australian police say homemade pipe and tennis ball bombs were thrown at a crowd at Bondi Beach before a mass shooting but failed to detonate, according to court documents released on Monday.
Malaysia court denies ex-PM Najib's bid to serve jail sentence at home
Malaysia's former prime minister Najib Razak, jailed for corruption in the multibillion-dollar 1MDB scandal, will learn on Monday if he can serve the remainder of his sentence at home in the first of two rulings this week that will test current premier Anwar Ibrahim's campaign against graft.
