By The Thaiger
Police believe he was motivated by jealousy. The couple had been together for three months.
Tha Chatchai police said the incident occurred at Soi 1 in front of Tha Chatchai Temple in Mai Khao before 4.30pm.
Orrathai Fonghoay, 55, from Trang, was found covered with blood on the ground. Five stab wounds were found on her body. She was taken to Thalang Hospital.
Witnesses told police that Orrathai had been with Somboon Saelao from Phuket for about three months.
Orrathai had broken up with him a week ago but Somboon refused to accept the rejection and confronted her.
Yesterday Somboon reportedly saw Orrathai, they argued before Somboon used a knife to stab her to death and then speed away.
Police have issued an arrest warrant.