New Delhi, April 17 -- Prosecutors in Bahrain said Thursday they had filed criminal charges over the death in custody of a man who was detained by the country's National Intelligence Agency.

The criminal case against an unnamed member of the domestic spy service came weeks after Bahrain's Interior Ministry announced an investigation into the death of Mohamed al-Mousawi, whose body was returned to his family bearing bruises, burns and cuts on March 27.

The Associated Press spoke to five witnesses who saw al-Mousawi at the morgue or at his funeral the following day and had a forensic expert from Physicians for Human Rights review images of his body. Witness described marks showing beating, whipping by cables and electrocution burns. The N...