A Fine Gael Senator has said that she cannot support the Protection of Life during Pregnancy Bill 2013.
Fidelma Healy Eames said that she would not be supporting the Government's Bill while the suicide clause remains.
Ms Healy Eames said she had informed Taoiseach Enda Kenny and Fine Gael headquarters of her decision.
She described the proposed legislation as "unjust and dangerous", and said it would permit abortion on a threat of suicide without any sound psychiatric basis.
"I am deeply disappointed that I find myself having to vote against my party, Fine Gael, on this bill," she said.