FILE PHOTO: Ireland's Prime Minister Leo Varadkar arrives for a meeting with European Union's chief Brexit negotiator Michel Barnier in Brussels, Belgium October 4, 2018. REUTERS/Yves Herman

DUBLIN (Reuters) - Irish Prime Minister Leo Varadkar said he still believes a positive outcome is possible in Brexit talks but is concerned that decisive progress has not been made despite a step up in engagement between the sides.

“I am disappointed and concerned, despite these efforts, it has not been possible to make the decisive progress we so urgently need. The gaps between the positions are significant and time is running out,” Varadkar told parliament on Tuesday.