British officials vowed to review security plans for the 2012 London Olympics Tuesday as a third day of rioting forced the cancellation of England's football match against the Netherlands. British Home Secretary Theresa May said officials would “look at what is necessary” to ensure a trouble-free Olympics, where police will be aiming to provide security for some 10,500. “We take the issues around the Olympics very seriously,” May told BBC radio. “An awful lot of work has already gone into planning in relation to the security and public order in relation to the Olympics and we will continue to monitor that and continue to look at what is necessary and what we need.” A London 2012 spokeswoman added: “We will continue to review security together with the Met Police and the Home Office over the coming year.” A spokesman for the International Olympic Committee said the organization was confident London could deliver a secure Games. “Security at the Olympic Games is a top priority for the IOC,” he said. “It is, however, directly handled by the local authorities, as they know best what is appropriate and proportionate. We are confident they will do a good job in this domain.” Olympic organizers sought to maintain a business-as-usual attitude Tuesday, going ahead with a series of events to prepare for the 2012 Games. A women's beach volleyball tournament began as scheduled at Horse Guards Parade, with players competing on a specially made sand court a short distance from 10 Downing Street. Other scheduled test events this week include a cycling road race and a marathon swimming competition at Hyde Park Saturday.