Baltimore police arrested a teenager in connection with Sunday's mass shooting.

City police announced late Friday morning an arrest of a 17-year-old boy.

Police said detectives believe the 17-year-old boy was involved in the mass shooting. He remains held at Central Booking on charges of possession of a firearm by a minor, assault weapon possession, reckless endangerment and handgun in vehicle. Police said they executed a search warrant on a house.

Three victims remain at hospitals, all in fair condition.... Read More: WBAL TV