Police in central Vietnam detained a man who set fire to a local police station on Tuesday .
Nguyen Anh Tri, 40, had brought half liter of gas to a police station in Thua Thien-Hue Province last week, threatening to burn police officer Pham Tai Van to death, the province police said.
Another police officer, Nguyen Vo Thanh Tuan, tried to stop Tri and got burned.
The police said Tri had a family problem earlier that day and threatened to burn down his house before officer Van had summoned him to the station.
Tri was previously charged on his record for "causing public disorder."