Border Patrol agents found the remains of what is believed to be a 7-year-old girl from India in the Arizona desert on Wednesday morning, according to a Customs and Border Protection statement. The girl was said to be traveling with a group of migrants who were dropped off by smugglers and told to cross into the U.S. in a “dangerous and austere location.” Tucson Sector Border Patrol agents found two adult women from India believed to have been a part of that group, and they said they made the journey with three others—a woman and two children—but were separated from them. Hours later, the Pima County Sheriff’s Department and Border Patrol agents found the girl’s remains 17 miles west of Lukeville and discovered the footprints of the woman and the other child leading back to Mexico.

While CBP agents are reportedly searching the area for more potential group members, none have been located on either side of the southern border. The agency also said the high temperature in the area on Wednesday was about 108 degrees. “Our sympathies are with this little girl and her family,” Tucson Chief Patrol Agent Roy Villareal wrote in the statement. “This is a senseless death driven by cartels who are profiting from putting lives at risk.”