INDIAN restaurants in Portsmouth were fined thousands of pounds after illegally employing workers.
The UK Border Agency said seven businesses in the city were fined a total of 47,500 during the past year.
Those included the Indian Palace restaurant, Gunwharf Quays which was fined 15,000, and the Urmi Balti House restaurant, Northern Road which was fined 10,000.
The UK Border Agency is now warning that more operations are planned.
Lyn Sari, head of the Local Immigration Team for Hampshire, said: 'We've had a lot of success targeting firms who employ illegal workers in Portsmouth during 2010, but we are gathering intelligence all the time, and more raids are definitely planned for 2011. It is the legal responsibility of all employers to check that employees have the right to work in the UK. Those who don't can be hit with big fines - up to 10,000 per person but if you deliberately employ an illegal worker you could face criminal prosecution.'