Hong Kong police arrest four in connection with firebomb attacks at local secondary school
- They are accused of taking part in both planning and carrying out the firebombing, as well as a previous act of vandalism at the school
- Police say that evidence currently suggests the incidents may have been in relation to recent calls for general strikes and class boycotts

Three students and one graduate from a Hong Kong secondary school were arrested over the vandalism and firebombing of the campus entrance in separate incidents, police said on Tuesday.
Three male suspects, aged 16 to 23, were detained by police in a series of raids in Kwai Chung and Tsing Yi between July 24 and Tuesday afternoon, according to Superintendent Lam Chi-yuen, an assistant Kwai Tsing district commander.
He said the trio were arrested for offences including arson, criminal damage and possession of offensive weapons. Police also said they seized two retractable batons during the raids.
A fourth suspect, an 18-year-old male student, was picked up at his home in Tsing Yi on Tuesday night and was detained for questioning, police said.
Officers are still searching for others in connection with the two attacks on the entrance of Lok Sin Tong Leung Chik Wai Memorial School in Tsing Yi.
A police source said all four were held on suspicion of carrying out the attacks, and planning them.
