A man was killed and his son critically injured after they were struck by a car while trick-or-treating in Irvine on Friday.

Emergency services responded to a report of an injury traffic collision at West Yale Loop and Burwood Street involving a vehicle and two pedestrians at around 7:15 p.m.

Irvine Police officers and personnel from the Orange County Fire Authority responded to the incident, in which John Roger Alcorn, 65, and his 4-year-old male son sustained significant injuries, according Irvine officials.

A Mazda 3 driven by a female adult was travelling on West Yale Loop near Burwood Street when she collided with the pair as they crossed the street, according to investigators. She stopped at the scene and was not facing charges, police said.

They were taken to a local trauma center, but at approximately 8:40 p.m. the man, who is a resident of Irvine, was pronounced dead. The child remains in critical but stable condition.

All traffic on West Yale Loop between Warner and Stone Creek North was shut down in both directions while the cause of the collision was investigated. It has since reopened.