South San Francisco officer critically hurt

A South San Francisco Police officer suffered a major head injury when knocked unconscious by a suspect with a skateboard Thursday afternoon and is listed in critical condition.

The officer was waved down around 2:20 p.m. in the 300 block of Grand Avenue by a witness who reported someone causing a disturbance.

The officer approached the suspect, who was not cooperative, and called for backup. As another officer arrived, the suspect fled on a skateboard and a short chase ensued.

The suspect, later identified as 28-year-old Luis Alberto Ramos-Coreas of South San Francisco, turned and hit the officer in the head with the skateboard, which rendered the officer unconscious.

The backup officer took Ramos-Coreas into custody without further incident.

The injured officer was transported to a trauma center to undergo surgery, according to police. The incident remains under investigation.