Prime Minister David Cameron is calling for a renewed effort against home-grown Islamic extremists in Britain in 2011.
In his New Year's message, Cameron calls on the overwhelming majority of British Muslims who detest extremism to help counter the threat from some young British Muslims who might carry out terrorist crimes.
Cameron says Britain also continues to face a serious threat from international terrorism, and that police and intelligence agencies continue to work around the clock to thwart potentially damaging plots.
The British leader adds that 2011 will be what he called a "crucial year" in Afghanistan, as British troops begin to transfer their security responsibilities to Afghan forces and start preparing to withdraw from the country.
compiled from agency reports