JACKSON, Ga. (AP) The Georgia Supreme Court stayed Monday’s scheduled execution of a man convicted of killing a fellow prison inmate, saying it would review a defense challenge based on the state’s recent switch to a single-drug injection.

Warren Lee Hill had been scheduled to be executed at 7 p.m. at the state penitentiary in Jackson. But the state high court said Monday afternoon it was unanimously staying the execution to consider Hill’s appeal challenging Georgia’s shift last week to a single-drug execution method.