A woman fired a shot that killed a man who had attacked and wounded her husband with a knife in Chawang district of this southern province on Saturday, police said.
Pol Col Suthas Songsayom, the Chawang police chief, said the incident occurred at a house in tambon Chandi.
The woman, Aree Narit, 61, told police the incident followed a quarrel between her husband, Krachang, 64, and his nephew, Sommai Wuthisak, 43, who lived in a house about 30 metres away.
She said that after a heated argument, Sommai attacked and wounded Mr Krachang with a big knife. When she tried to stop him, Sommai instead charged at her with the knife.
She then ran to grab a .22 pistol and when Sommai continued to attack her, she fired one shot that hit him in the chest, killing him on the spot.
The woman said she had to intervene, otherwise Sommai could have killed her husband.
Mr Krachang, her husband, was admitted to hospital for treatment.
Witnesses were being questioned. Mrs Aree was detained for further questioning pending legal action.
Police work at the house where Aree Narit killed Sommai Wuthisak, who wounded her husband in Chawang district of Nakhon Si Thammarat, on Saturday. (Photo by Nujaree Raekrun)