Police found the body of a teenage girl with a fatal stab wound in her neck when they responded to a report of a fist fight at 2.30am in Tambon Klong 6 area. A 21-year-old man identified as Chalermpol Jankaew had suffered two stab wounds in his torso and was rushed to Thanyaburi Hospital.

An 18-year-old female eyewitness told police that she and friends went to have a drink at a nearby pub when a group of men approached them and asked for her phone number. She refused and walked out of the pub.

She said a fight broke out between Chalermpol, who was her ex-boyfriend, and the men.

Following the brawl, the men tried to flee but four of them were captured by nearby residents and handed over to police. The four suspects were later identified as the alleged stabber Thanin Sompong, 23, Weerachai Pulthawee, 20, Suriyong Thingcharoen, 26 and Nanthapiwat Wongreed, 20.

Thanin told police that he knew the 18-year-old witness. He claimed that Chalermpol saw the girl with his group and this led to the fist fight.

Police say he admitted stabbing Chalermpol and the 16-year-old girl was stabbed to death unintentionally.