Shares of Boeing fell Tuesday following a report that China has halted the delivery of all its jets to airlines in the country as part of the escalating trade war.

Boeing shares were lower early Tuesday after a report that China ordered its airlines not to take any more deliveries of U.S.-made jets.

China reportedly asked its airlines to halt Boeing orders, which has put the aircraft manufacturer in the middle of the U.S.’s trade war with China. Boeing, a major U.S. company, relies heavily on international orders,