Beijing (Agencies): At least 36 people including 32 Chinese tourists and four North Koreans were killed in a bus crash in North Korea on Sunday, the foreign ministry in Beijing said on Monday.

Two other Chinese nationals were injured in Sunday's accident south of the capital Pyongyang, ministry spokesman Lu Kang told a regular press briefing.

"We are investigating the cause" of the accident, Lu said.

The ministry provided few details but China's state broadcaster CGTN earlier tweeted that more than 30 people died when a tour bus fell from a bridge in North Korea. The tweet was later deleted.

State broadcaster CCTV broadcast images of a large overturned vehicle with light rain falling on rescue vehicles and doctors attending to a patient.

China was informed about the accident on Sunday night, and its embassy personnel in Pyongyang rushed to the scene and are working to manage the situation, the foreign ministry said in a statement earlier.

The vast majority of foreign tourists to North Korea are Chinese , with the Cold War-era allies sharing a long land border and operating flights between the two countries.