![EC President Donald Tusk welcomes Ireland's PM Leo Varadkar EC President Donald Tusk welcomes Ireland's PM Leo Varadkar](https://static.euronews.com/articles/stories/03/38/11/98/1200x675_cmsv2_388985a2-ed07-5233-9466-d900786175d9-3381198.jpg)
Video. Theresa May: EU must not let Irish border issue 'derail' Brexit deal
The UK Prime Minister Theresa May has urged the EU not to allow a stand-off over issue of the Irish border to "derail" Brexit negotiations - saying she still believes a deal is "achievable".