8/31 Update: A 24-year-old man has been taken into custody this morning. The suspect is known for "acts of violence and violation of the legislation on narcotics" according to French news site Midi Libre.

Original report below:

Pierre-Ambroise Bosse, the newly crowned world champion over 800m, announced on Wednesday morning that he will end his season prematurely after being assaulted while on holiday in the south of France last weekend.

The incident happened at 4 AM on Sunday morning in the parking lot of a casino in Gujan-Mestras, according to the French news outlet Sud-Ouest. Three men approached Bosse and his friends and asked to take a photo with the world champion athlete. He obliged and they "brutally assaulted" him in the face and body.

Bosse posted the following message on social media today (translated to English from French via Facebook):

"Good evening, everyone.
Last Saturday I was a victim of a violent assault following a crowd movement.
3 people brutally assaulted me.
The Consequences:
-multiple fractures to the face
-many days of ITT (Total Inability To Work)
-unspeakable moral damage.
An investigation is underway. For all these reasons, my season stops from this day!
I've always loved people. I love three less today.
PAB"

Bonsoir tous,

Samedi dernier j'ai t victime d'une violente agression suite un mouvement de foule.

3... https://t.co/H0yXdv4K7A

— PABosse (@pa_bosse) August 30, 2017

An investigation by French authorities is ongoing.

Bosse was scheduled to compete in Angers on September 9. His rise to world champion this season was unexpected, though he did place fourth at the Olympic Games in Rio.