( CNN ) -- Three Maryland teenagers were arrested on Sunday in Baltimore after authorities found they possessed 70 boxes of ammunition belonging to the U.S. Air Marshals . The surprising discovery started early Sunday morning with patrol officers checking a parked black Chevy that appeared to have hit a curb . The vehicle had its lights off , and the three suspects were sitting inside , police said . The officers found 70 boxes of ammunition that are for law enforcement use only , according to a police report . None of the suspects could justify their possession of the ammunition , the report said , adding that the driver -- 18-year-old Brandon Michael Shreve of Linthicum , Maryland -- gave the police consent to the vehicle search . Officers also found bolt cutters , flashlights , latex gloves and other auto parts inside the vehicle , according to the report . Police said that Shreve later admitted he had broken into a trailer . Both the trailer and the recovered ammunition belong to the U.S. Air Marshals , police added . Shreve also admitted to breaking into a Ford Mustang vehicle , according to the police . All three suspects -- including two others ages 15 and 16 -- have been charged , police said . Under most circumstances , CNN 's policy is not to name juveniles accused of crimes .
Three boxes of ammunition are discovered in Sunday early Sunday morning search . The ammunition was found in a parked vehicle in Maryland . 70 teenagers , including an 18-year-old driver , were inside the vehicle , police said . Charges have been filed against all suspects .