Yesterday’s explosion at Boston Marathon came just six days before thousands of athletes and fundraisers will take to the streets of the capital for London Marathon’s race.

Chief Superintendent Julia Pendry, the event commander, confirmed that security arrangements will be reviewed following the explosions in Massachusetts reports The Daily Mail.

She said: ‘A security plan is in place for the London Marathon. We will be reviewing our security arrangements in partnership with London Marathon.’

London race’s chief executive Nick Bitel said he had contacted police to discuss security arrangements as soon as he heard about bombing in Boston, but confirmed that Sunday’s events will go ahead, “We will not be cancelling the event.’ 

He said that  In a statement he added: ‘It is a very sad day for athletics and for our friends in marathon running.’Fears were also raised for the safety of the 500,000 spectators expected to line the streets of London, and it is thought some of those who were intending to go – or run – will now stay away”.