Gunmen shoot Baghdad 'caterers'

Gunmen dressed as Iraqi police have shot dead seven men who were apparently working for a catering firm supplying security forces in Baghdad.

The killers attacked after arriving in two cars outside a large private house where the men worked in the central business district.

The unidentified attackers used pistols with silencers.

The workers are believed to have been involved in a business that supplied food for the Iraqi National Guard.

Four other workers escaped the attack. One man went to the police and raised the alarm.

The BBC's Jonny Dymond in Baghdad says attacks by insurgents on those who supply the Iraqi security forces are rare, but they are the softest targets.