SIPTU members at Dublin Fire Brigade are to start industrial action this morning in protest over 'critical' staffing levels.

They say that Dublin City Council have failed to keep the minimum levels of staff to provide safe systems of work, with many firefighters doing 'unsustainable' levels of overtime.

The industrial action will see workers refuse to do overtime on certain dates as a base level of action.

SIPTU say that Dublin Brigade is 70 firefighters under strength.