A man has been arrested in Suphan Buri province for alleged sexual abuse of a schoolgirl and videotaping it for sale on his Facebook messenger and Twitter accounts.

Police apprehended Suchart Charoenphol, 37, on Thursday night.

He was wanted on charges of sexually molesting a 16-year-old girl and human trafficking by producing or distributing child pornography for sexual exploitation.

The arrest followed a tip-off that porn videos and other material had been put on sale on social media by Facebook user “Lerk Khui Thang Amphor’’ via his Facebook messenger, police said on Friday.

An undercover officer posing as a customer ordered a video from the Facebook user, who  gave a bank account in the name “Suchart Charoenphol’’ for payment.

The girl in the video was found to be a Mathayom 4 (Grade 10) student in Suphan Buri. 

Investigators brought in officials from the Ministry of Social Development and Human Security to help the girl, police said.

The girl told officials she had met Mr Suchart through Twitter. They had chatted at first and over time became close. One day, he picked her up on his motorcycle after she attended a tutorial school.

He said he would take her on a tour around, but they ended up in a love hotel where he sexually abused her. He also videotaped sexual acts and took photos.

Afterwards, she was fearful and ashamed, and dared not tell anyone what happened.

Police found pornographic videos and stills of the 16-year-old victim on his mobile phone.

Mr Suchart allegedly confessed to all charges.