Post-Brexit checks on goods have been suspended in Northern Ireland after "sinister and menacing behaviour" and threats to port staff.
An outgoing Stormont minister appealed for calm today after graffiti and reports of intelligence-gathering on port inspectors.
Since Brexit kicked in on January 1, inspectors have had to check some goods arriving at Northern Ireland's ports from the UK.
Unionists say this is effectively a border across the Irish Sea - something ministers promised would never happen due to Brexit.
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