The boy attack stabbed another man in an incident police said had the “hallmarks” of terrorism but was yet to be declared a terrorist act.

Western Australia police shot dead a “radicalized” 16-year-old boy on Saturday night after he stabbed a man in Perth.

State Premier Roger Cook said the teenager attacked a man and then “rushed” at police officers, armed with a kitchen knife.

The police responded by shooting him twice with Tasers before firing a single fatal shot.