Ex-Tory MP says PM's EU vote promise is 'destabilising'

A former Tory MP has accused the Prime Minister of "destabilising" British politics with his promise of a referendum on UK membership of the EU.

Lord Dykes, who is now a Liberal Democrat peer, warned that the effects of David Cameron's speech were going to be "very disturbing".

He said the threat of a referendum would create "a lot of uncertainty and difficulty", particularly for British businesses.