NEW : ` ` We want to reassure runners , spectators , volunteers '' about safety , says event CEO . Organizers of the London Marathon say it will take place as planned Sunday . READ MORE : London mayor says `` robust security measures '' are in place for the event . '"
NEW : ` ` We want to reassure runners , spectators , volunteers '' about safety , says event CEO . Organizers of the London Marathon say it will take place as planned Sunday . London mayor says `` robust security measures '' are in place for the event . '"