http://www.abc.net.au/news/stories/2008/05/07/2237315.htm Armed police returned fire after they were shot at in an upmarket west London suburb, Scotland Yard said. The shooting, in Markham Square, Chelsea, just off the suburb's popular shopping street, Kings Road, a spokeswoman said. Armed police, she said, were forced to return fire after they were shot at. It is unclear how many gunmen were involved. Witness reports said more than half a dozen shots had been fired. It is also not known what sparked the incident.