Simon Coveney was attending an event by the Hume Foundation at the Houben Centre in Northern Ireland when he was rushed off stage.
An event organiser said a suspect device was discovered in the car park of the venue.
Tim Attwood, secretary of the Hume Foundation, said: “There is a security alert and the Police Service of Northern Ireland are currently assessing the situation.
“Everyone has had to evacuate the centre.”
MORE TO FOLLOW