BAGHDAD (AP) — Iraqi lawmakers from the Sunni-dominated block are accusing the country’s Shiite government of torturing to death a jailed bodyguard who worked for the fugitive Sunni vice president.

The guard was held on suspicion of terrorism. Authorities say he died of kidney failure on March 15.

A Sunni lawmaker from Iraqiya, Salman al-Jumaili, demanded an investigation on Thursday. He says human rights organizations should look into the case.

Vice President Tariq al-Hashemi — Iraq’s the highest-ranking Sunni official — has been accused of running death squads against Shiite pilgrims, government officials and security forces.

He has denied the charges and has fled to the semi-autonomous Kurdish region to avoid an arrest warrant issued in December.