Dublin commuters are facing four days of Luas strikes.

SIPTU members have served notice of action on the company amid a dispute over pay and conditions.

Transdev says some tram drivers are seeking pay increases of up to 54% as part of the row - which it's not in a position to pay.

Workers are due to down tools in two 48-hour work stoppages - on the 11th, 12th, 18th and 19th February.