A video of a group of young people jostling and swearing at an elderly man at Hong Kong’s airport on Saturday has gone viral online.

The clip showed several youths, believed to be protesters against the city’s now-shelved extradition bill confronting the man who witnesses said had earlier pushed aside a poster held by a young woman protester.

In other videos, the man was seen wheeling his suitcase toward the bus terminal with a yellow note on his back reading: “Black police plus triads equals to no law”