The bodies of five undocumented immigrants were found in the desert of southern Arizona, where federal agents also rescued 36 illegal migrants, the U.S. Border Patrol said.

Most of the bodies were found Tuesday in different parts of the Sonoran desert, the Border Patrol said in a statement.

In one of the incidents, the Border Patrol search, trauma and rescue, or Borstar, unit responded to an emergency call from the Pima County Sheriff's Department concerning the presence of 12 illegal immigrants and the discovery of a person who had apparently died of dehydration.

In another incident, agents at the Ajo Border Patrol Station in Pima received a call about the discovery of the body of an undocumented migrant three miles north of the Lukeville Port.

Agents at the Casa Grande station, for their part, discovered the body of a woman near the town of San Miguel.

In another part of the desert, the Borstar team located a group of 15 undocumented migrants who were suffering from dehydration and agents detected human footprints that led them to the dead body of another illegal immigrant.

Also Tuesday, the federal agency received an emergency 911 call about a group of undocumented immigrants in the West Desert and found nine migrants showing signs of dehydration.

On Monday night, Casa Grande agents found another body in the West Desert.

The Border Patrol attributed the deaths to high temperatures exceeding 110 degrees Fahrenheit in recent days in Arizona.