Hanoi police are searching for two alleged dog thieves who were filmed robbing a motorbike to flee a mob chase but were then forced to run on foot.
A video capturing the scenes was posted on the internet and prompted police to investigate.
The video was shot at an intersection in Dong Anh District at 1:30 p.m. on Wednesday, police said.
The two young men allegedly left their own motorbike and a dead dog after they were chased by a crowd of villagers.
They approached a motorbike rider on the street and threatened him with a machete to rob the bike.
A bus passed by. The bus driver tried to shove the two men, making them unable to jump onto the bike.
They had to leave the bike and ran on foot.
After being informed of the case, local police arrived at the scene and seized the bike that the men used to transport the stolen dog.