Labour's Brendan Howlin says he sees "no basis for a common policy platform" with the Progressive Democrats.
Mr Howlin was speaking after a report in today's Irish Timesin which PD leader Mary Harney said she will go into the next general election open to entering government with Fine Gael and Labour.
Ms Harney said her party would not be tied to the single option of coalition with Fianna Fail.
But Mr Howlin said today Labour and the PDs were "poles apart" in terms of policy and that he saw no basis for an arrangement in any future government.
However he admitted there were other views in the Labour Party and that the issue of any future political arrangements would be decided by conference.
A Fine Gael spokesman said the party was not making any comment on Ms Harney's remarks.
The PD leader said yesterday her party is less concerned with the personalities who would be in government than with the policy programme it would agree. "We would be as open to being in a Fine Gael-led government as a Fianna Fáil-led government," she told The Irish Times.