BURNABY, B.C. - A B.C. high school has been evacuated after unexploded mortar shells were discovered nearby.

RCMP Cpl. Ted De Jager says the bombs were found Wednesday afternoon near Alpha Secondary in Burnaby, B.C. De Jager says Mounties are still trying to determine how the mortar shells got there and where they might have come from.

De Jager wouldn't say how close to the school the shells were found, or even how they were discovered.

Mounties have cordoned off the area around the school and have also evacuated some nearby homes.

De Jager says officers are still attempting to determine the state of the mortar shells.