The discovery this week of five skeletal remains on the Tohono O’odham reservation has prompted a police investigation.

Casa Grande Border Patrol agents discovered the remains near Sells Tuesday morning and contacted the Tohono O’odham Police Department, which is the lead investigative agency.

The remains were found in a rocky area and some of them were wrapped with trap-like material and covered with rocks, said Dr. Greg Hess, Pima County’s chief medical examiner.

The remains are not typical of those of border crossers who succumbed to the elements, he said. However, Hess said they won’t know if their death involved foul play until the remains are examined on Tuesday.

So far this year, 70 remains of border crossers have been found in the region. None has been classified as a homicide.

Senior Editor, News, Arizona Daily Star, Tucson, Az.