Classes cancelled at southeast Edmonton school after overnight fire

Extended: Fire at T.D. Baker School Classes were cancelled on Thursday at T.D. Baker School in southeast Edmonton after an overnight fire. (Video credit: Ana Gomes)

A Mill Woods junior high school is closed Thursday after an overnight fire.

Fire crews were on scene at T.D. Baker early Thursday morning after a portable classroom caught fire.

Photos show the portable was damaged on the outside, but the full extent of the damage is unknown, Edmonton Public Schools said.

Classes at the junior high are cancelled on Thursday "to keep students and staff safe while crews continue their work," Edmonton Public Schools added.

The Edmonton Police Service is investigating the fire but said "it’s too early to say it’s suspicious, as investigators haven’t ruled out accidental causes."

The fire started just before midnight and it was brought under control at 3:15 a.m., Edmonton Fire Rescue Services said.