A police lance corporal at Nong Prue in Bang Lamung district, Chon Buri, faces dismissal from the force after being charged with extortion and forcing a 22-year-old woman to have sex with him and two accomplices.

Pol Col Apichai Krobpet, chief of the Muang Pattaya police station, said on Monday that witnesses and surveillance camera footage from an apartment building where the woman lived confirmed that a lance corporal from Nong Prue station had visited the premises on Saturday.

He was accompanied by two other men dressed like police volunteers.

Nong Prue police later detained and took the three suspects to Muang Pattaya police station where the woman had filed a complaint.

The three men were charged with illegal detention, extortion and gang rape. They admitted to being at the apartment building but denied all the charges.

Their names were not released.

The woman told reporters late on Sunday night that three men followed her male friend when he arrived to visit her on Saturday. They searched her room and demanded 30,000 baht from her, threatening legal action against her if she did not pay.

Then they took her to a motel where they forced her to have sex with them. She said the man in a police uniform went last. He also took all the money she had with her and warned that if she did not pay the remainder in the near future, he knew where she lived.

Police said security camera footage showed the three men wore face masks. One of them was in a police uniform. His two accomplices were dressed as police volunteers, but were not actually members of the force.

Pol Col Apichai said he had asked the Chon Buri police commander to dismiss the policeman from the force.