Updated

Indonesian police have arrested dozens of suspected Islamic militants on the main island of Java as authorities get set to tighten anti-terrorism laws following last month's deadly attack in Jakarta.

Central Java police spokesman Col. Liliek Darmanto says police early Saturday arrested 36 men who were attending military-style training at an alleged jihadi camp on the remote slopes of Mount Sumbing.

Police are investigating the men's possible links to Islamic radicalism. Officers seized air rifles, knives, jihadi books and flags in the raid.

Separately, police say five men were captured late Friday in Malang, a hilly city in East Java province.

Indonesia's government has submitted to parliament a new anti-terrorism law that would enable authorities to hold suspects involved in radicalism and extremism for up to six months.