LEWISTON  — Maine fire investigators are trying to determine the cause of two fires reported overnight in Lewiston.

At around 11 p.m. Tuesday firefighters were called to the Bates Mill for a fire in an elevator shaft.

It took about two hours to get the fire under control.

At about 2:30 a.m. Wednesday firefighters were called to a fire at a warehouse on Holland Street.

No injuries were reported in either fire.