Post Falls firefighters are investigating a shed fire that started early Friday morning.

The fire started around 7:30 a.m. on the 10000 block of Snowshoe Road and black smoke could be see from Interstate 90.

According to firefighters, the two homeowners were home when the fire started. They were not injured.

Firefighters said there was a shop of some kind in the shed.

A neighbor said she heard popping noises and then the shed went up in flames.