Eight people have been arrested during an immigration crackdown in Belfast and Co Fermanagh.
Two other men aged 27 and 43 were also arrested when immigration officers swooped on the China City takeaway at Forthill Street in the town.
The businesses could now face a fine of up to £10,000 if they fail to prove adequate pre-employment checks were carried out.
Meanwhile, two other men - a 30-year-old from Algeria and a 55-year-old Nigerian - were arrested after trying to fly from Belfast International Airport after being found to be in the country illegally.
All those arrested are being held at a detention centre in Larne, Co Antrim awaiting deportation.
Mike Golden of the UK Border Agency, said: "Foreign nationals who are in this country illegally should be in no doubt that they will be found, arrested and removed from the UK.
"We are determined to crack down on immigration offenders and anyone found living or working here illegally is liable to be detained and removed."