A 40-year-old man remains in police custody after trying to ram his way out of a police roadblock on Friday night in Ho Man Tin, injuring a police officer. Speaking to the press on Saturday morning, the police said the man faces seven charges, including trafficking in dangerous drugs.

At a briefing with reporters, Superintendent Tsui Suk-yee said police received a report at 7 pm of a private car driving erratically in Kowloon City and Hung Hom and that red lights had allegedly been jumped and the vehicle driven in the opposite direction to the traffic.

At about 8 pm, officers found that the vehicle had come to a halt with the rest of the traffic on Princess Margaret Road, where police had put up a roadblock. Police said the vehicle then tried to ram its way free.

The car allegedly hit a police officer and dragged him along the road but officers, who had drawn their guns, eventually detained the suspect. Four other private cars were also damaged.

"The police strongly condemns the arrested man for disregarding the safety of road users and officers executing their duty. It's a very irresponsible act," Superintendent Tsui said.

Officers later found suspected drugs in the vehicle, including methamphetamine, crack cocaine and ketamine, with a total market value of over HK$20,000.

Police said they also found a Hong Kong identity card which did not belong to the suspect.

Tsui said the driver did not have a driving licence and the vehicle had been rented.

"According to our initial investigation, when the arrested person rented a car, he got a valid driving licence. However, until Friday, his driving license had been expired," she said.

The man was arrested on suspicion of taking conveyance without authority, furious driving, assaulting police officers, trafficking in dangerous drugs, possessing other's identity card, driving without a licence and driving without a third party risk insurance.