The Brexit is expected to top the agenda when the Taoiseach and the British Prime Minister meet in Downing Street today.
Enda Kenny is travelling to London this morning, to meet with David Cameron at No.10 Downing Street.
Last week SDLP leader Colum Eastwood said the Brexit is the biggest immediate threat to Northern Ireland's economy.
It is expected that the Taoiseach will take the opportunity to discuss this, and the Ireland/UK Joint Work Programme.