Macron speaks to attendees during his visit to the International Catering, Hotel and Food Trade Fair in Lyon on Monday. AFP
A video of the incident, widely shared on the social media, shows Macron walking through the crowd when an egg bounced off him without breaking while a protester shouted "Vive la revolution" (long live the revolution). Two bodyguards can be seen immediately getting closer to the president.
The video also shows a man being taken away from the scene by other bodyguards, with Macron saying he would try to speak with him later.
"If he has something to tell me, let him come," Macron said at the International Catering, Hotel and Food Trade Fair (SIRHA). "I'll go see him afterwards."
Macron (2nd R) looks at a lunchbox containing dishes prepared by the French contestant of the Bocuse d'Or gastronomy contest. AFP
No details have been released by authorities on the man's identity or possible motivation.
In June, Macron was slapped in the face by a man as he was greeting the public in a small town in southeastern France. He then denounced "violence” and "stupidity.” The slap prompted a wide show of support for France's head of state from politicians across the ideological spectrum.