Northern Ireland terror threat level raised to 'severe' ahead of possible Biden visit.
The UK's Northern Ireland Minister Christ Heaton-Harris has raised the threat level from domestic terror in Northern Ireland from "substantial" to "severe" following the shooting and injury of an off-duty police officer in Omagh in February. The move comes ahead of a planned visit by US President Joe Biden to the Republic of Ireland and Northern Ireland expected to take place next month on the anniversary of the Good Friday peace agreement. Tensions have risen in Northern Ireland since the UK departed the EU, leaving the territory in a state of limbo.