UK Border Agency officials and police arrested five men at a restaurant in Quadring in relation to suspected immigration offences.
The raid took place at The Curry Inn, in Main Road, on Thursday.
Police say the men booked into custody were aged in their 20s and 30s and came from addresses in Cambridgeshire, Hampshire and Cheshire.
The UK Border Agency is expected to issue a statement later today.
The restaurant is continuing to trade.