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.

A Boeing jet earmarked for China was returning to the United States on Friday, flight tracking data showed, as the planemaker's flagship delivery plant outside Shanghai was drawn into a deepening tariff war between Beijing and Washington.

China Southern Airlines said it was suspending the sale of 10 used Boeing planes.