LONDON — British police used smoke grenades and a stun gun in an early-morning swoop Thursday on a home close to London's Olympic Park, as six terror suspects were rounded up in a series of raids across the city. Officers said the five men and one woman were detained following an operation to monitor their activities and insisted their alleged plans to stage attacks had no link to London's upcoming Summer Games, which begin on July 27. Police didn't identify the suspects, who range in age from 18 to 30. However, Mizanur Rahman, who is involved with a Muslim activist group, said all those arrested were British Muslims. Three of the men were detained in Newham, the London borough which contains the Olympic Park. Officers said a 24-year-old suspect was hit by a Taser gun during his arrest, but did not require hospital treatment. Rahman said the three men were brothers. Scotland Yard confirmed it had previously employed one of the men as a community support officer, a law enforcement worker who patrols the streets but does not have powers of arrest. Resident John Smallshaw said a raid took place at a residence on Abbey Road, only about a mile from the Olympic Park. He said he was awoken just after 4 A.M. by “five loud bangs in quick succession" and saw police raiding the home. He said he later witnessed “one young man taken on foot to a waiting ambulance." Three others, including a 30-year-old woman, were detained in the Ealing neighborhood of west London, police said. “Today's operation in London is not linked to the Olympic and Paralympic games," Scotland Yard said in a statement. Searches were being carried out at eight separate addresses in east, west and north London and at one business in the Hackney district, close to the financial district. — AP