Three people were killed and one injured in central Japan today when an unknown man attacked with a knife and a pistol, after which he barricaded himself in the buildingreported by the Japanese media.

So far, many details have not been released about an incident in which a man in camouflage uniform stabbed a woman and opened fire with a hunting rifle in central Japan’s Nagano prefecture, national broadcaster NHK reported.

Two policemen also died in this incident. another person was injured, — added to NHK. It is not clear at this time if they were stabbed or shot.