Boeing China said it is working with its airline customers and is ready to support them after a nearly 7-year-old Boeing B737-800 passenger jet of China Eastern Airlines, with 132 people on board, crashed in the mountains of southern China on Monday.

"Our thoughts are with the passengers and crew members of China Eastern Airlines flight MU5735. 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," Boeing China said in a statement on Tuesday.

The flight was traveling from Kunming, Yunnan province, to Guangzhou, Guangdong province on Monday afternoon. The plane plunged nearly 8,000 meters in 3 minutes at 2:19 pm and crashed on the mountain, according to data from flightradar24, a global flight tracking service.

Boeing 737-800 passenger jet serves as one of the company's most widely used aircraft. China Eastern suspended all its Boeing 737-800 jets after the crash.