Cameron announces £30bn National Infrastructure Plan

David Cameron has used his speech to the CBI conference to launch the government's first National Infrastructure Plan.

The Prime Minister said major economic investment was needed to underpin sustainable growth in the UK in the coming decades.

Mr Cameron said countries such as China had been investing massively in new roads and rail links while the UK had "stood still".

He added: "Even in this very constrained time, we will invest over £30bn in transport projects over the next four years."