The Douglas County Sheriff’s Office asked the public to be on the lookout for a Castle Pines teenager last seen Friday morning.

Alexander Gratrix, 15, of Castle Pines, is developmentally delayed and was reported missing Thursday. Officials say he left his home following a family dispute. 

Authorities say Gratix was last spotted on a surveillance camera in Castle Pines North at 8 a.m. Friday.

Gratrix is described as 5 feet 6 inches with a thin build, brown hair with blue eyes. He was last seen wearing a blue hat with a Hawaiian designs, a black t-shirt, grey athletic shorts and black high-top shoes.

Anyone who spots Gratix was asked to call the sheriff’s office at 303-660-7500 or its tip line at 303-660-7579.