The FBI is asking the public to identify the suspects who allegedly attacked a driver and stole a pickup truck about midnight on April 29.

The victim, a member of the Navajo Nation, suffered a head injury and facial lacerations and required sutures because of significant blood loss, the FBI said.

The assault and theft occurred on the Ute Mountain Ute Reservation near the entrance of the Weeminuche Construction Authority gravel pit off U.S. 160 near the Four Corners Monument, according to the FBI Denver Division. The Bureau of Indian Affairs in Towaoc also is investigating the case.

The suspects are believed to have fled toward the intersection of U.S. 160 and U.S. 64 in Teec Nos Pos, Arizona.

“The FBI is responsible for investigating the most serious crimes in Indian Country and we, along with our law enforcement partners, will continue to aggressively pursue these cases,” said Special Agent Michael Schneider. “We ask anyone with information about this violent attack on a community member to contact us.”

The stolen vehicle was described as a 2015 Chevrolet Colorado 2WD crew cab short bed with Arizona tag CAF1572. The VIN is 1GCGSAE30F1176700 and the truck has a cracked windshield, black marks on the driver’s side front fender, and an “#AztecStrong” sticker in the rear window.

For information, call the FBI Denver Field Office at (303) 629-7171 or submit a tip online at: tips.fbi.gov.