Latest: Taxi Drivers Federation surprised by rate of arrests during illegal immigration crackdown

As many as one in four taxi drivers stopped at recent illegal immigration checkpoints are suspected of being in a sham marriage.

Update 2.54pm: The Irish Taxi Drivers Federation has expressed surprise at the high rate of arrests during an illegal immigration crackdown.

It has emerged gardaí targeted cab drivers in May after noticing an unusual pattern in applications for public service vehicles.