An Alberta man convicted of crimes that included crashing a stolen pickup truck into a school bus and a police chase involving a stolen semi-trailer truck has been sentenced to four years in prison.

A central Alberta man has been charged in the January head-on crash of a stolen pickup with a school bus that slightly injured two children.

Police executed a search warrant and found multiple illegal weapons, including sawed-off shotguns, handguns, an Uzi-style assault rifle, brass knuckles, tomahawks and hatchets at an Alberta home.