A new opinion poll is showing a significant increase in support for Fianna Fáil - the first time the party has seen a substantial increase in a year.

Of the government parties, Fine Gael loses support in the survey for the Sunday Times, but Labour increases slightly.

The Behaviour and Attitudes poll for tomorrow's Sunday Times was taken between June 5 and 15.

Fine Gael is on 24%, down three points from the last such poll in May.

Fianna Fáil leader Micheál Martin

Fianna Fáil goes back into second place on 21%, a four-point increase. This is off the back of the by-election win in Carlow-Kilkenny, and despite the party's very public spat with the

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Sinn Féin drop one to 19%, Labour go up 1 to 9, the Greens lose a point to 2%, while Independents and others are unchanged on 26%.

Satisfaction with the coalition drops two points to 28% and Micheál Martin is the only leader to substantially increase support - up five points to 40%.