A Chinese national was questioned by Phnom Penh authorities on Monday after an SUV carrying more than 6kg of methamphetamine crashed into a tuk-tuk which turned turtle, leaving two people with serious injuries.

The black Lexus RX350 driven by the Chinese rear-ended the Indian-style tuk-tuk while it was stopped at traffic lights.

The SUV sped off after the crash, but residents gave chase and the driver was arrested by authorities at Tapang market, near Central Market, in Daun Penh district’s Phsar Thmey III commune.

Eav Phearith, the head of Phnom Penh municipal police anti-drugs bureau, said a large quantity of methamphetamine was found when the vehicle was searched. “The suspect had more than 6.5kg of drugs in his car,” he said.

Phearith said he could not go into further detail as authorities were working on the case to find others involved.

Sem Kunthear, head of the municipal traffic police, confirmed that a Chinese national responsible for a road accident had been arrested by authorities in Daun Penh district.

His office was not involved in the case, but criminal division authorities were investigating, he added.

Separately, Kampong Cham provincial police arrested 10 people for dealing and taking drugs in Prey Chhor district’s Tong Rong commune on Monday.

The arrests were made after a thorough investigation in accordance with a provincial court summons, National Police said.

Police confiscated six small packages of a suspicious powder, seven mobile phones, a car, four motorbikes, a sword, three homemade rifles and cash.