evidence: As Northern Ireland is the only part of the UK that shares a land border with another country, she said, "what is happening here is completely unique". Some people crossed the border – which is unmarked except for signs switching from miles to kilometres – accidentally, aiming for Dundalk in the Republic, but ending up in Newry. [...] Elderly Ukrainians who have family in Northern Ireland were waiting in unsuitable homes in the Republic while their visas were processed. Eventually, they also crossed the border "out of sheer frustration", Henry said.