Air Canada says it has taken one of its pilots out of service after they made “unacceptable” posts on social media.

In a statement published on X on Tuesday, Air Canada said it was “taking this matter very seriously” and the pilot was “taken out of service on Monday, October 9.”

“We firmly denounce violence in all forms,” stated the airline.

The announcement comes after Stop Antisemitism, a group that describes itself as a “leading non-partisan American-based organization,” posted information and photos on X showing an Air Canada pilot holding antisemitic signs at what appeared to be a Palestine solidarity rally.

The group provided an update to its posts on X, with a link to the Air Canada statement about the incident.

The incident comes after Israel Prime Minister Benjamin Netanyahu declared the country is at war on Saturday after militant Hamas rulers of the Gaza Strip fired thousands of rockets and Hamas fighters infiltrated the border in several locations.