London Marathon: Mo Farah keen to run despite Boston bombs Date: Sunday, 21 April Highlights: 1800-1900 BST on BBC Two and other connected devices Coverage: 0830-1400 BST on BBC One, online, mobiles, the BBC Sport app and Connected TVs Double Olympic champion Mo Farah says he is happy to compete at the London Marathon on Sunday, despite the Boston Marathon bombings. There will be an increased police presence at the London race in light of events in Boston. Farah, 30, is set to run in the full marathon but only intends to complete half of the 26.2-mile course. This is home for me. This is where I grew up and there's no reason not to do this," Farah said. Three people were killed and more than 100 injured by the blasts near the finish of Monday's US event. London Marathon: Eamonn Martin, the last British male to win Farah told BBC Radio 5 Live: "It's sad news what happened in Boston and my support goes to all the people and families. Those people would want us to carry on and do the best that we can. You can't be thinking about negative things. You just have to be positive and do what we came out here to do. Farah is one of 35,000 runners due to take part in London. The 5,000m and 10,000m champion from the 2012 London Olympics may also move up to the marathon for the 2016 Games in Rio. Farah, who said he was "excited" to be running in the event, plans to run the full distance in the 2014 London Marathon. But Farah told BBC Sport: "It doesn't necessarily mean a track runner can be good at marathons." In response to criticism from other athletes, including Paula Radcliffe, Farah said: "I'm not here to just turn out for a bit of money. London Marathon weather As an athlete you do get some rewards, but the people running this year will be the same people running next year, so I want to learn a lot about the race. Hugh Brasher, London Marathon race director, rejected the notion that Farah was just an expensive pacemaker. He said: "Sunday is an important stepping stone in Mo's transformation from track to marathon running. There is nothing to stop Mo Farah completing the whole course, but there is absolutely no way he will. With Farah certain not to reach the finish line, Scott Overall leads the British challenge in the men's race, with Amy Whitehead the leading home runner in the women's race. The London Marathon announced on Thursday it will donate £2 for every finisher in Sunday's race to The One Fund Boston, set up to raise money for victims of Monday's bombings. Race organisers estimate at least £70,000 will be raised.