Eight of 10 Brits say they wants to see a cap on immigration, the government's own survey has revealed.

Despite ministers ruling out on a cap, a Home Office poll of attitude towards people coming into the country found overwhelming support for a 'strict limit' on immigration numbers.

A total of 81 per cent said they favoured a cap while only 13 per cent said they were against.

Earlier this month, Mr Johnson told MPs on the Home Affairs Committee that he did not "lie awake at night" worrying about the prospect of the population hitting 70 million.

Campaigners claim that millions of new arrivals could flood into Britain, forming 70 per cent of the nine million increases in the population, which they predict by 2028.

The survey of public attitudes for theĀ UK Border Agency found sharp rises in numbers worried about the impact of immigration on jobs.

More than two-thirds (69 per cent) thought immigration was a big or fairly big problem.

A similar proportion (67 per cent) said they were fairly or very dissatisfied with government handling of immigration; and 64 per cent said immigration laws should be tougher.

Mr Johnson told the Home Office Committee he would not bring in a cap because it would harm the economy.

He said we should welcome immigrants coming to live and work here.