Three people died and 13 were wounded in a shooting yesterday evening at the Strasbourg Christmas markets in France.
Police continue to hunt for the gunman who opened fire on crowds in the city centre at around 8pm local time.
The incident is being treated as a terror attack.
The suspect, a 29-year-old male, was known to police. He was on an intelligence services watchlist and believed to have been radicalised, according to French security services.
Local reports say police had attempted to arrest the man for a separate crime earlier that day. Grenades were found in his apartment, while the suspect was not at home.
The French government has raised its security threat to the highest level and is bolstering border controls.
Security measures were already in place and police patrols in operation prior to the attack as thousands flocked to the famous Christmas markets.
Strasbourg is the official seat of the European Parliament, which was in session on Monday night.
MEP for Midlands-North-West Marian Harkin tweeted : “Home safe and well. Thank you to the Parliament staff who kept the restaurants open and the drivers who brought us safely home and to all the staff who stayed on. Prayers and sympathy for those who were lost or hurt.”
Sinn Fein MEP Martina Anderson said: “I was in the city centre at the time and heard the gunfire and people, including young children, running away in panic.
“This incident has caused panic in the area with crowds of people out enjoying the Christmas markets.
“Details of the incident are still emerging but my thoughts are with those injured and all of those caught up in this incident.”