The 29-year-old confirmed reports circulating online that the fan, who initially asked for a selfie, suddenly attempted to slap him before being arrested.
Aguerd reassured supporters on social media that he was unharmed despite the unsettling encounter.
"I want to reassure everyone following the information that has been circulating for the past few hours. I was indeed assaulted at Marignane airport while waiting for my flight to join the Moroccan national team," he posted.
"Fortunately, it was more of a scare than anything else, and everything was quickly resolved thanks to the intervention of security personnel and law enforcement. Everything is now in the hands of the police.
“I'm doing well, and I'm now focused on what matters most to me: playing for OM and representing my country with pride. Let's always be calm and respectful. Life goes on."