Relatives have identified three bodies found in a well as those of two Australian surfers and one American who went missing last weekend, Mexican authorities said Sunday.

Baja California state prosecutors said the relatives had viewed the corpses recovered from a remote well about 50 feet (15 meters) deep and recognized them as their loved ones.

Thieves apparently killed the three, who were on a surfing trip to Mexico’s Baja peninsula, to steal their truck because they wanted the tires. They then allegedly got rid of the bodies by dumping them in a well near the coast.

The well was located some 4 miles (6 kilometers) from where the foreigners were killed, and also contained a fourth cadaver that had been there much longer.