An Irish man has been stabbed to death in France.
He was working as an English language teacher at the Léonard de Vinci University in Paris.
66-year-old John Dowling was attacked in front of the school on Wednesday.
A man has been arrested, with the school saying the suspect was a former student.
In a statement, Léonard de Vinci said John had been teaching English with their institution since 1999.
They added: "John was a very friendly man, respected and loved by all students and colleagues. He was also known for his great availability and kindness.
"The community of the [university] is deeply shocked and saddened by this tragedy of extreme violence."
Ce mercredi 5 décembre, l’un de nos enseignants a été mortellement agressé à l'extérieur de l'établissement. La communauté du Pôle Léonard de Vinci est profondément choquée par ce drame. Elle adresse ses plus sincères condoléances à la famille et aux proches de John Dowling. pic.twitter.com/8lCDuufzKR
— Pôle Léonard Vinci (@GroupeLDV) December 5, 2018
The school is in the La Défense business district of the French capital.
It has more than 4,600 students within its four schools.
It offers degrees in engineering, management and internet and multimedia.
The Department of Foreign Affairs say they are aware of the case, and are providing consular assistance.
France's Minister of Higher Education, Frédérique Vidal, said the killing was an "indignation".
She said all light should be shed on the police investigation.
She also offered her sympathies to the victim and the workers at the university.
Émotion et indignation alors qu’un professeur vient d’être assassiné au pôle universitaire Léonard-de-Vinci. Toute la lumière doit être faite dans le cadre de l’enquête conduite par la police judiciaire. Une cellule psychologique sera ouverte dès demain au sein de l’établissement pic.twitter.com/l3ZeymNtka
— Frédérique Vidal (@VidalFrederique) December 5, 2018
Counselling is to be made available to people at the school when it opens on Thursday.