REVERE, Mass. — Police were seen carrying several large bags from a suburban Boston apartment that authorities say was searched in connection to the Boston Marathon bombing.

Boston area television stations reported that the bags were removed from the apartment on Ocean Avenue in Revere just north of Boston at about 2 a.m. Tuesday.

Police did not disclose what was in them and calls to federal and state authorities were not immediately returned.

Massachusetts State Police confirmed that a search warrant was served Monday night but provided no further details.

The Revere Fire Department wrote on its Facebook page that firefighters responded to the scene for a search for “a person of interest.”

The FBI is leading the investigation into the explosions, which killed three people and injured more than 140.