Mounties in Port Coquitlam are investigating after a security guard was allegedly assaulted overnight with a weapon.

The incident happened on Chine Drive around 1 a.m. on April 23, near Westwood Street and Kingsway Avenue, according to police.

The middle-aged guard was taken to hospital and is in stable condition.

Police are searching for a suspect and haven't revealed what kind of weapon was used.