The Massachusetts National Guard almost immediately began providing support for victims of the April 15 bombings that killed three and injured scores at the finish line of the Boston Marathon. As recovery efforts continued, more Guard members were called upon to keep routes clear and help law-enforcement agencies assess the damage and search for a perpetrator. Units include the 211th Military Police Battalion, the 387th Ordnance Company, and the 267th Combat Communications Squadron. Meanwhile, Defense Secretary Chuck Hagel promised Defense Department support for recovery operations. The Navy provided an ordnance-disposal team as well, at the request of the Massachusetts government.