MANILA, April 15 (Xinhua) -- A man went berserk in Zamboanga del Norte in southern Philippines on Saturday and hacked to death five people, including his four children, before he was shot dead by policemen, the police reported on Sunday.

Police said the suspect, identified as Asdal Untong, used a machete to kill the victims, all residents of Libucon, a village of Sirawai town in the province.

The victims were aged seven to 35 years old, according to the police.

Police are still investigating what triggered the suspect to go on the hacking spree.