SIR - It is ironic that when voters in Scotland, England and Wales went to the polling stations on June 23, 2016, to vote in the EU referendum, few if any would have given thought to how it might affect the border between Northern Ireland and the Irish Republic. Yet, now it has become a crucial, defining issue, and one possibly likely to affect what the final outcome might be. In the time spent since the result, little has been said on how this will be resolved, beyond the rhetoric of "There will be no hard border" from Theresa May.

To some, it seems an intractable problem. For, to achieve the result of no hard border, it seems Britain would have to stay in the Customs Union or Single Market (or both). Yet, others say, to do either of these would constitute not really leaving the EU. It appears almost a 'Catch 22' situation. But, however it is solved, and it must be, everything possible should be done to avoid a return to the sort of events that were taking place in Northern Ireland only a few decades ago. Some are too young to know, but the recent BBC programme, The Funeral Murders reminded all too clearly, in gruesome detail.

David Hornsby, West View Avenue, Wrose