An investigation into a double homicide is underway on the Meskwaki settlement in Tama County.
The Iowa Division of Criminal Investigation says they've been on the scene since late last night.
Authorities are at a home in the 600 block of Meskwaki Road.
The FBI was called to assist in the investigation at about 1 a.m. this morning.
Investigators say tribal officials will release more information later on this morning.