Canning Vale: teen armed with knife coaxed down from petrol station roof

POLICE were called to a service station on Nicholson Road in Canning Vale just after midnight where they found a teenager on the roof, armed with a knife.

A police negotiator attended and the 15-year-old boy came down from the roof.

Once on the ground, the youth removed the knife and advanced towards police who subdued him and he was taken to hospital for assessment.