Boston, Massachusetts:
British Prime Minister David Cameron, accompanied by Massachusetts Governor Deval Patrick, has visited the Boston Marathon bombings memorial.
Cameron and Patrick visited the makeshift memorial that includes T-shirts, letters, running shoes and other items in the city's Copley Square early Tuesday morning.
The memorial grew in the wake of the April 15 explosions at the marathon finish line that killed three people and injured more than 260.
One suspect died in a shootout with police days later, while a second suspect is recovering in a federal prison hospital.
Cameron is in Boston to offer his condolences and discuss lessons that can be learned from the deadly bombings.
The trip follows a White House visit on Monday during which Cameron met with President Barack Obama.