On Thursday, January 6, 2010, a pair of incendiary devices blew up at Maryland's Department of Transportation's headquarters in Hanover and at the Jeffrey Public Safety Building, a state government building in Annapolis. The first explosion occurred at the Jeffrey Public Safety Building at 12:30 p.m. and the second occurred twenty minutes later at the DOT.
Firefighters and hazardous material crews responded to both sites and managed to extinguish small fires. People on the scene reported smelling sulfur after the devices burned. Several people suffered minor injuries as a result of the devices. A total of eight people were injured and four were transported to a local hospital for treatment of non life threatening injuries.
Governor Martin O'Malley reported to 11 News that one of the packages was addressed to him and the other was addressed to the state secretary of transportation. Both packages were sent through the U.S. Postal Service. The devices were in packages approximately the size of a book and will be sent to forensics for further investigation. State and federal authorities from the Maryland State Police, FBI, Homeland Security, and Joint Terrorism Task Force are investigating the incidents.