The US plane manufacturer Boeing has begun flying 737 Max jets that were refused by Chinese airline customers back to the United States, as the trade war between the world’s two biggest economies escalates.

The US plane manufacturer Boeing has begun flying 737 Max jets that were refused by Chinese airline customers back to the United States, as the trade war between the world’s two biggest economies escalates.

Bloomberg reported earlier this week that China had instructed airlines to stop taking delivery of Boeing jets.