Costa Rican authorities have arrested a 51-year-old British citizen, identified by the last name Bridgeman, as a suspect in the death of a 54-year-old U.S. citizen surnamed Mills.

Agents with the Judicial Investigation Organization (OIJ) detained Bridgeman following a shooting reported on Friday afternoon.

According to a police report, the Red Cross received an emergency call at about 4 p.m. involving two men who had suffered gunshot wounds. Paramedics arriving at the scene found Mills with a gunshot wound to the back and severe blood loss.

Mills was transported to the emergency room of a public clinic in Cóbano Canton in Puntarenas Province, where medical staff attempted to save his life. He was later pronounced dead.

Clinic officials notified the OIJ, which transferred Mills’ body to the Judicial Forensic Medicine Complex in Heredia. An autopsy will determine the official cause of death.

Bridgeman, the second foreign national involved, sustained a gunshot wound to one arm. He was treated at the scene and later taken by paramedics to the same public clinic in Cóbano. After his release, OIJ agents arrested him on suspicion of homicide.

Preliminary findings indicate the incident occurred on private property, according to the OIJ. Investigators allege Bridgeman was handling a firearm when it accidentally discharged. The bullet reportedly grazed Bridgeman’s arm before continuing and striking Mills in the back, fatally wounding him.

Bridgeman was transferred to the Public Prosecutor’s Office in Puntarenas, where he appeared for initial judicial proceedings. He remains in custody while awaiting a judge’s decision on possible pretrial measures.