Boston police and a cadre of federal officials descended on an Ocean Avenue apartment complex in Revere last night.
In addition to two Boston Police K-9 units and a bomb squad unit, a large contingent of federal agents from the FBI, Immigration and Customs Enforcement, as well as Homeland Security investigations and state police had assembled at the two buildings.
It was unclear whether the search was connected to the Boston Marathon bombings. Tight-lipped agents said nothing to assembled media. Worried building residents said they were left in the dark.