'Disgraceful' union leaders criticised by Damian Green

Immigration staff have voted to go on strike on the eve of the Olympics, when tens of thousands of people are due to fly into the UK for the start of the Games.

Members of the Public and Commercial Services union say they will walk out for 24 hours next Thursday.

However Immigration Minister Damian Green told BBC Two's Newsnight that most union members did not back the industrial action.

He said it was ''a small group'' in the union leadership that is ''behaving disgracefully''.