The bus went off the road and moved erratically. Then, passengers found out the driver was unconscious.

A passenger named Sun took the steering wheel and guided the bus to the side of the road. Another passenger used the brakes to stop the bus.

There are cars on a street in Seoul, South Korea.

After the bus stopped, passengers helped the driver and did CPR until medical help arrived.

Sun called for emergency help because he was the only one who spoke Korean.

The story of the rescue became popular on social media, and many people praised the Chinese tourists.

One person wrote, 'I hope the women who helped are lucky and happy, and I hope the driver is safe.'

Another person said, 'It was very scary, but they stayed calm and helped. It's very impressive.'