Tunisia beach attack: British security officials to Tunisia

Teams of security officials are on their way from Britain to Tunisia to help investigate last week's attack on a beach resort, which claimed 38 lives.

Scotland Yard says that hundreds of counter-terrorism officials will take part in their biggest investigation since the 7/7 attacks on London ten years ago.

More details are emerging about the Tunisian gunman, with new claims that he did not act alone.

Orla Guerin reports.