A Pheu Thai Party MP cut his arm in Parliament during a debate on students' rallies on Tuesday night, saying he did not want students to get hurt.
During the special parliament session, Wisarn Techateerawat, 64, who represented the northern province of Chiang Rai, shared his view on students' political rallies, saying he did not want the government to respond to demonstrators with force.
He said he had no idea how to solve political problems but he did not want young people to bleed. He said he wanted to show that he was serious about the matter.
Mr Wisarn then took off his jacket and drew a fruit knife. Parliament President Chuan Leekpai told him he would not allow him to cut himself but Mr Wisarn used the knife to slash his left lower arm three times, shocking other MPs.
Mr Wisarn was sent to Vajira Hospital where he had nine stitches.
Later, Palang Pracharath MP for Bangkok Sira Jenjaka said he was disappointed by Mr Wisarn.
Mr Sira said that he could not believe that the MP had brought a weapon to Parliament since the act was illegal.
"I don't sympathise with him. How could he pull a stunt like that in Parliament?... This MP must be prosecuted for carrying a weapon to Parliament," Mr Sira said.
