Lib Dems offered an invitation to defect

Labour leadership contender Ed Miliband has extended an open invitation for frustrated Liberal Democrat MPs to defect.

The shadow energy secretary said the coalition deal with the Tories was causing “widespread unhappiness” in the parliamentary party and the “welcome mat” was out for those who wanted to switch sides.

Former Lib Dem leader Charles Kennedy has had to quash persistent rumours that he was quitting the party for Labour.