British Prime Minister David Cameron's office says his country will review its scrutiny of far-right extremist groups in the wake of Friday's mass killings in Norway.

The prime minister chaired a meeting Monday of the National Security Council to determine whether Britain's security agencies had given “adequate scrutiny” to the right-wing groups. The council also examined the implications for Britain from the Norway bombing and shooting attack that left 93 people dead.

Police are reviewing the threat from extremist groups, following criticism by some that more attention should be paid to the matter.

Anders Behring Breivik, the chief suspect in the Norway attacks, has claimed he was recruited by British right-wing extremists. Police are investigating any potential links.