PITTSBURGH — A fire this morning that has displaced six people who lived in apartments above a Pittsburgh bicycle shop might be arson.

Investigators still are trying to figure out how the fire started in the city's Mount Washington neighborhood. But they say it appears carpeting in the first-floor bike shop began burning and that the flames spread into the walls and into apartments upstairs.

The American Red Cross is helping the residents find housing.

No injuries were reported. The fire was reported about 3:15 a.m.

By The Associated Press