China Eastern is grounding all of its Boeing 737-800 passenger flights after a plane crashed with 132 people on board

• China Eastern is grounding its Boeing 737-800 passenger flights after one crashed.
• The plane crashed into a Chinese mountainside about halfway through its journey on Monday afternoon.

China Eastern is grounding all of its Boeing 737-800 passenger flights after one of its planes crashed on Monday afternoon in the southern Chinese region of Guangxi, Chinese state media Yicai Global reported.

The plane, a Boeing 737-800, was traveling from Kunming Changshui International Airport to Guangzhou Baiyun International Airport when it crashed into a mountainside about halfway through the flight, Insider previously reported.

Yicai Global reported that the plane was less than seven years old, and that China had 1,200 Boeing 737-800 in service as of 2019.

China Eastern did not immediately respond to Insider's request for comment on grounding the flights.

The cause of Monday's crash remains unknown.

A Boeing spokesperson told Insider of the crash: "Our thoughts are with the passengers and crew of China Eastern Airlines Flight MU 5735. We are working with our airline customers and are ready to support them. Boeing is in contact with the US National Transportation Safety Board and our technical experts are prepared to assist with the investigation led by the Civil Aviation Administration of China."

There were 123 passengers and nine crew members on board when the China Eastern flight crashed. The number of casualties is unclear.

About 450 rescuers rushed to the site following the crash.