TAOISEACH MICHEÁL Martin will today travel to Belfast to meet leaders of the five main parties of Northern Ireland.
The visit comes just three days after Minister for Foreign Affairs Simon Coveney made the same trip.
The talks are expected to focus on the Northern Ireland Protocol and efforts to restore power-sharing.
The assembly must resume by 28 October to avoid a fresh election being called. If it does not resume, the Northern Ireland Secretary Chris Heaton-Harris must set an election date.
The last election was held in May, but the Democratic Unionist Party (DUP) has refused to vote for a new Speaker until their issues over the Northern Ireland Protocol are scrapped.