Immigration of non-EU citizens saw a "statistically significant" decrease to 244,000 last year, down from 269,000 the previous year.
ITV News UK Editor Lucy Manning reports that the Government links this to the fact that they have more control over non-EU immigration.
But statisticians said the fall was due to fewer New Commonwealth citizens - such as those from India - migrating to the UK for formal study.
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Outbreaks of rain and strengthening winds will affect southernmost parts of England and Wales today.
An earlier debate on the issue was suspended as an 'expression of support' following the Westminster terror attack.
Five people were killed and dozens more were injured after a car and knife attack in the capital on Wednesday afternoon.