BUENOS AIRES, Argentina (AP)—Argentine boxing champion Rodrigo Barrios testified on Monday before a prosecutor in a murder case in which he is accused of killing a pregnant woman in a car accident in which six others were injured.

Police said Barrios, 33, ran a red light on Sunday, and struck another car in the coastal city of Mar del Plata, about 400 kilometers (250 miles) southeast of Buenos Aries.

The force of the crash carried the second vehicle into the path of seven pedestrians, killing one of them. Witnesses said Barrios fled the scene and struck another car as he drove away. He is a former WBO world junior-lightweight champion.