CIA 'responded to Benghazi attack in less than 25 minutes'

CIA security officers went to the aid of State Department staff less than 25 minutes after they got the first call for help during the attack on the US Consulate in Benghazi, Libya, intelligence officials have said.

The attack on the 11th anniversary of the September 11 terror attacks by what is now suspected to be a group of al-Qaida-linked militants killed US Ambassador Chris Stevens and three other Americans.