Romney on foreign policy: 'A dangerous situation'

Republican presidential candidate Mitt Romney has called for a "change of course" in the Middle East, criticising US President Obama on foreign policy.

Speaking in Virginia, he lambasted the White House over an attack in Libya that killed the US ambassador.

He said he would put Iran "on notice" over its nuclear plans, and called for arms to go to Syrian rebels.

With four weeks to go before the election, polls show Mr Obama retains a foreign policy lead over his rival.