A soldier from Iowa deployed to Naval Station Guantanamo Bay died Tuesday while he was swimming with other service members, officials said Thursday.

Pfc. Matthew Cox, 19, and four others were swimming at Cable Beach when strong currents overpowered him, The Army Times reported. It was not immediately clear why the group was at the beach.

Cox was a member of the Iowa Army National Guard’s 186th Military Police Company of Camp Dodge, Iowa.

Cox is from Leon, Iowa, about 70 miles south of Des Moines, and was deployed to Cuba in support of Joint Task-Force Guantanamo.

Cox’s body was found Wednesday afternoon after first responders began search-and-rescue operations that employed divers, boats and aircraft, officials said.

The four other service members were not injured.

Authorities are investigating as at press time.