'Screams and cries filled the air'

Eyewitness

Wang Yu and his parents arrived at the square of Kunming Railway Station at around 9:20 pm on Saturday. They were waiting for a train that would take them home to Harbin in the northeastern province of Heilongjiang, when they saw a group of people dressed in black and wielding large knives.

"They began to chase people and slash randomly. Screams and cries filled the air. Just like frightened birds, people fled, leaving luggage scattered everywhere," Wang said.