Iraq crisis: Kerry in Irbil for talks as crisis rages

The US secretary of state is in the northern Iraqi city of Irbil holding talks with Kurdish leaders as Sunni rebels continue their offensive.

John Kerry's central aim is to assist the formation of a new, more inclusive Iraqi unity government.

Meanwhile the Sunni rebels say they have fully captured the country's main oil refinery at Baiji, north of Baghdad.

Jonathan Beale reports from Baghdad.