(JTA) – Kuwait Airways may bar Israeli citizens from boarding its planes in Germany, a Frankfurt court ruled. Jewish and political leaders in Germany criticized the ruling handed down Nov. 16 by the district court. The plaintiff, an Israeli student living in Frankfurt, will appeal, his lawyer said. “This is a shameful ruling for democracy and for Germany,” attorney Nathan Gelbart told the German news agency dpa. “Gelbart is the German counsel for The Lawfare Project, a New York-based litigation fund for Israelis who allege civil rights violations.

The student, identified in court documents as Adar M., had sued the airline over its cancellation of his flight to Bangkok in the summer of 2016. The flight was to originate in Frankfurt with a stopover in Kuwait. When the state-owned airline found out the student’s nationality, it canceled his ticket, referring to a 1964 law that bars any agreements with Israeli citizens. Adar M. demanded damages.

In rejecting the charges, the court said it was unreasonable to expect an airline to “fulfill a contract if it means going against the laws of its state” and having to face legal consequences at home. But Frankfurt Mayor Uwe Becker said in a statement that “an airline that practices discrimination and anti-Semitism by refusing to fly Israeli passengers should not be allowed to take off or land in Frankfurt, or at any other airport in Germany. This Kuwaiti law, that is deeply anti-Semitic and that forbids the transport of Israelis, cannot be legal grounds for the violation of international standards.”

Deidre Berger, head of the American Jewish Committee’s office in Berlin, told the Bild newspaper that Germany should follow the example of the United States and Switzerland: “If an airline refuses to take Israeli passengers on board, it should not be allowed to operate in Germany. Politicians should not shirk their duties and simply blame the courts,” she said. In January 2016, Kuwait Airways dropped its route between New York City and London after the U.S. Department of Transportation found the airline was breaking American law by barring passengers based on nationality. The decision followed an appeal by an Israeli citizen against a negative ruling by the department.

In late October, Germany’s minister of transport, Alexander Dobrindt, ordered a Transport Ministry investigation into whether Kuwait Airway’s discriminatory policy violates German air traffic laws.