No injuries were reported after an early morning structure fire in Nuuanu today.

The Honolulu Fire Department responded at 2:59 a.m. to 32 Kauila Street, where the first of 11 units to arrive discovered a single-story residence with flames extending from underneath the house up an exterior wall to the attic.

More than 40 HFD personnel assisted in fire suppression, bringing the blaze under control at 3:34 a.m. and fully extinguishing it at 5 a.m.

While HFD continues to investigate the cause of the fire, they said a group of squatters was living under the home, which was unoccupied. The home’s owner reportedly lives on the mainland.

A damage estimate wasn’t immediately available.