Winnipeg's Kelvin High School was evacuated on Wednesday afternoon, after smoke was detected while renovation work was being done in the building.

Firefighters were called to the River Heights-area school at about 2:45 p.m. CT and stayed there for several hours.

The Winnipeg School Division told CBC News no students were in the school at the time, but about 20 to 30 staff members got out of the building quickly and safely.

A division spokesperson says it appears the smoke was coming from the cafeteria, where flooring-related construction work was in progress.

Summer session classes at Kelvin will be cancelled on Thursday as the smoke gets cleared out, according to the school division.