Three quarters of children born in some parts of UK last year were to foreign-born mothers, according to the latest figures from the Office for National Statistics.

The most recent official data shows some 3.3 per cent of live births in the UK were born to Polish mothers in 2015 - up from 2.3 per cent in 2008.

It comes as the ONS announced net migration to the UK was 327,0000 in the 12 months to the end of March.