Deportations from Ireland rose by 70pc in the past year after the Government introduced a new law making it easier for authorities to expel people here illegally.
Some 425 people were deported up to December 7, Department of Justice data obtained by the Irish Independent revealed. This compared with just 251 deportations in 2015 and 111 in 2014.
Officials said the increase was due in part to changes under the International Protection Act last March.
These allow an immigration officer or a garda to arrest, detain and deport someone who has ignored a deportation order without needing a warrant.
The legislation was brought in by Tánaiste Frances Fitzgerald amid concern over a sizeable number of illegals ignoring deportation orders.
Of those deported during 2016, some 178 were returned to Nigeria, 59 to China, 16 to Ghana, 14 to Brazil, 13 to Albania and 13 to South Africa.
The deportations included a Jordanian national who had been living here since 2000 but had suspected involvement in providing logistics support for Isil fighters.
Following his deportation, Ms Fitzgerald said she would “make no apology” for expelling suspected extremists in situations where it was not possible to bring criminal prosecutions against them here.
The State is also seeking to deport a north African man over alleged links to Islamic terrorism.
Last July, it emerged an Iranian refugee living in Ireland for the past 25 years had been refused citizenship amid concerns over “national security”.