An investigation is underway after an overnight fire at a South Bend apartment complex.

Emergency crews were called to the 2600 block of Arabian Court at Hurwich Farms Apartments just after 3:15 a.m. Monday on reports of a fire.

ABC 57 News reports no one was hurt, but several residents were displaced.

At this time, the cause of the fire has not yet been confirmed, but investigators believe it may have been lightning.