Fianna Fáil says it won't support a Sinn Féin motion in the Dáil next week to scrap water charges - despite it being party policy.

Micheál Martin's accused Sinn Féin of "play acting" with a motion, due to be debated next week when the Dáil ends its summer recess.

The motion from SF will be non-binding, as only a "money bill" can affect the status of charges, and only the Government is empowered to table one.

Speaking as his party gathered in Carlow for a parliamentary party 'think-in', Mr Martin says SF motion would have no legal standing: