TUCSON, Ariz. -- A 10-year-old boy died after he was struck by a Pima County Sheriff's Department patrol vehicle in Tucson Monday afternoon.Deputy Jesus Verduzco was responding to a call in a marked Chevrolet Tahoe when he hit the boy near Campbell Avenue and Wyoming Street at approximately 4:45 p.m.The boy was transported to a local trauma center where he later died. The Tucson Police Department responded to investigate the collision. Witnesses reported that the boy was with a group of children who had been running back and forth across the street. At one point, he was on the east side of the road and the rest of the group was on the other side. As the deputy approached the area, the boy suddenly ran out into the roadway to join his friends.Police said the deputy swerved but was unable to avoid striking the child.Verduzco stopped and rendered first aid.There was no indication that speed was a factor in the collision, according to police spokeswoman Maria Hawke.Verduzco has worked for the sheriff's department for five years. He has been placed on administrative leave, which is standard procedure.