A Hong Kong police station came under attack during Monday’s early hours, when three black-clad men hurled petrol bombs into the compound, sparking a search for the perpetrators. Firefighters were called to Happy Valley Police Station on Sing Woo Road when the firebombing happened at about 2.20am. A police source said he believed three petrol bombs were hurled into the station car park. The fire burned out before firefighters arrived. He said the fourth flaming projectile landed on Kwai Fong Street near the junction with Sing Woo Road, leaving a parked car blackened. Government adviser defends Hong Kong police’s use of sedition laws Officers scouted the area, but no arrests were made. According to police, no one was injured and no evacuation was needed. “Officers seized glass fragments at the scene for examination. The case has been classified as arson,” police said in a press statement. The incident came a week after a similar firebombing attack at the police married quarters compound in Sheung Shui . In the Sheung Shui case, three petrol bombs were hurled into the car park of the staff quarters, leaving two cars blackened. Officers arrested a 62-year-old man outside the building in connection with the attack. It was the fourth of its kind at the site in six weeks. No one was injured in the four cases. Security around staff quarters and police stations has been enhanced since January, after a message which read “burn doghouse” was posted on Telegram, an app used by anti-government protesters who use the term “doghouse” to refer to officers’ homes. On January 29 and 30, there were petrol bomb attacks on four police stations and a patrol car within 24 hours, in a wave of action apparently intended to force the government to completely close the city’s borders with mainland China and supply more protective gear to residents in response to the coronavirus outbreak . The city has experienced months of protests sparked by the now-withdrawn extradition bill, which would have allowed the transfer of fugitives to jurisdictions with which it does not have existing agreements, including the mainland. Since the protests began in June, radicals have destroyed traffic lights and set street fires, attacked police stations, vandalised MTR facilities, shops and banks, and occupied universities. They have also attacked police officers on the front lines, hurling petrol bombs and bricks. Police have responded by firing more than 16,000 rounds of tear gas, 10,000 rubber bullets, 2,000 beanbag rounds and 19 live rounds. So far, more than 7,000 people have been arrested for various protest-related offences, including rioting, possessing explosives and firearms without a licence, and arson.