EL RENO, Okla. (AP) — Three buildings owned by the Cheyenne-Arapaho tribe in the unincorporated community of Concho have been damaged by fires that are being called suspicious.

El Reno Fire Chief Kent Lagaly told reporters that the tribal courthouse, an office building and a maintenance barn were damaged by the fires that were reported about 2:15 a.m. Tuesday. Several vehicles and farm equipment that were in the barn were also damaged, but Lagaly says no injuries were reported.

Lagaly said the U.S. Bureau of Indian Affairs will investigate the fires.

Concho is on the northern edge of El Reno, just west of Oklahoma City.