Business Secretary Vince Cable has said the Conservative party are "in a bit of a panic" on immigration, claiming that their position on the issue is "doing a great deal of damage".
"There is very little evidence of benefit tourism coming from eastern Europe, all the evidence suggests they put far more into the economy in terms of tax than they take out in benefits," he told the BBC's Andrew Marr show.
Cable's Liberal Democrat leader, Nick Clegg, has come out against curbs on EU immigration into the UK, claiming that without freedom of movement the National Health Service would "fall over".
More top news
The alarm was raised at around 8.50pm.
Labour calls for option of second referendum to be considered by MPs next week.
The predicted drop in output represents more than the annual public spending on hospitals, GP surgeries and other health services in Norther