Image: London Marathon tributes (Chris Jackson, Getty Images)
This hand-written message was one of many tributes to Boston victims.
A fish-eye lens captures runners passing the Houses of Parliament and the "Big Ben" clock tower during Sunday's London Marathon, the first major international marathon since the bomb attack near the finish line in Boston.
Sir Richard Branson (right), chairman of Virgin Group, chats with Prince Harry at the finish during the London Marathon on Sunday.
Sign of support
Runners pass beneath a bridge where spectators display a banner showing support for the victims of Monday's Boston Marathon bombing. Tens of thousands of runners flowed through the British capital Sunday after a solemn moment of silence at the start.
Time to head for home
Runners head towards the Houses of Parliament and the "Big Ben" clock tower at the marathon's 25-mile point on Sunday.
A competitor wears a black ribbon in memory of the victims of the Boston Marathon bombing before the start of the London Marathon on Blackheath Common.
A runner pours water on his head to cool off at the finish line. Tsegaye Kebede, the 2010 champion in London, was the overall winner in 2:06:15.
A London competitor shows his sympathy toward the victims of Monday's Boston Marathon bombing.
Lulu, a member of a British police explosive dog search team, patrols with her handler during the London Marathon six days after two fatal blasts rocked the finish line in Boston.
An unidentified competitor proposes marriage after crossing the finish line during the London Marathon.
Security at major events is heightened all around after the Boston Marathon bombings.