ARLINGTON, Va. (DC News Now) -- Investigators are looking for a person seen in video recorded in Crystal City Thursday morning after someone set fires at three businesses there. The Arlington County Fire Department (ACFD) responded to Crystal City Sports Pub, which is in the 500 block of S. 23rd St., at 5:30 a.m. Crews found items on the business's patio had been set on fire. The business' sprinkler system contained the fire and quickly extinguished it. PREVIOUS COVERAGE: Fire at Crystal City Sports Pub deemed suspicious Investigators found fire damage to neighboring Freddie's Beach Bar & Restaurant and McNamara's Pub and Restaurant. ACFD said Friday that the fires, which it initally deemed suspicious, officially were classified as arson. Investigators asked people who live nearby to check their Ring cameras between the hours of 4 a.m. and 6 a.m. on Thursday, Jan. 9 to help identify a person of interest. Anyone with information is asked to contact Lt. Wandekha Kanthula at 571-357-0769 or [email protected].