A special weapons and tactics police squad raided a building on Soi Charan Sanitwong 34, Bangkok, on Thursday afternoon after a tenant reportedly killed the building supervisor and threatened to shoot other people.
A gunshot was heard after they entered. Rescue workers said the man was dead.
Siriporn Phochanada, 63, was found dead with a gunshot wound to her head by a tenant on the ground floor of the four-storey terraced house number 68/14 in Bang Phlad district on Thursday morning.
The suspected killer was another tenant, identified as Piyawat Messirilert, 57. About 10am he hid in a room on an upper floor and threatened to kill himself and later to shoot anyone who tried to get to him.
Police from the Bang Yi Khan station laid siege to the house. Later the SWAT team arrived as officers tried to negotiate with the man.
Police said he had a pistol and a rifle and the victim might have been killed on Wednesday evening.
The SWAT team rushed into the house about 2pm. A gunshot was heard and smoke bombs were used. Rescue workers said the man was dead. Police said the man took his own life.
The dead woman's younger sister said Siriporn had lived there for about six years in a separate room and took care of the house. She had argued with Piyawat about tidiness. The rent had been raised recently.
Police gather near the house on Soi Charan Sanitwong 34 in Bang Phlad district Thursday. (Photo by Chanat Katanyu)