No one was inside Caterpillar Inc. early Monday when the roof sagged over an area about 300 square feet.

Heavy snow has caused part of the roof to sag at a West Fargo business.

No one was inside Caterpillar Inc. early Monday when the roof sagged over an area about 300 square feet. Early shift workers were told to stay home.

The sagging roof broke a sprinkler line, but officials say the water damage was not significant.