A court in Vietnam has sentenced a woman to life in prison for killing her journalist husband by setting him on fire as he slept.

A court official said Tran Thi Thuy Lieu was convicted of murder in a one-day trial Thursday in southern Long An province. The official spoke on condition of anonymity because he was not authorized to speak with the media.

Newspaper reporter Le Hoang Hung died last January. Suspicion initially fell on people Hung may have targeted in his aggressive investigative reporting.

State media reported after the arrest that Lieu had lost money from gambling and her husband refused to sell their house.

Online newspaper VnExpress reported Lieu testified that she hadn't meant to kill her husband in the attack.