PORTLAND — The Maine Marine Patrol and Coast Guard are continuing to search for the missing captain of a Portland-based water taxi.

Officials said video surveillance cameras showed Adam Patterson leaving at 3:25 a.m. Wednesday in the 24-foot boat that he operated as Portland Express Taxi. The search has ranged as far north as Phippsburg and as far south as the Kennebunk River.

The Marine Patrol said both of Patterson’s cellphones were found aboard a sailboat docked on Long Wharf on which he’d been living for 10 days.

The Marine Patrol investigation revealed that Patterson spoke to a family member about two hours before he was seen leaving his the boat at a time when a gale warning was in effect. The company’s owner reported the boat and Patterson missing Wednesday afternoon.