U.S. Park Police are looking for a Honda Odyssey minivan after a hit-and-run incident early Monday morning that left several other cars damaged near Maryland Route 450 in Bladensburg.

Maryland State Police are searching for a man carrying a sledgehammer and a shotgun who attacked a worker along the Baltimore-Washington Parkway this afternoon, shutting down traffic near the intersection of Interstate 195.

Authorities are currently searching for an older model black four-door BMW, a passenger of which fired a gun at a revelry motorcoach on the Baltimore-Washington Parkway on Sunday.