Nguyen Duy Tan is being held at a police station in HCMC.

The incident happened on Sunday at 2:30 p.m. A 35-year-old delivery driver arrived at a hotel to deliver a package to Tan. The driver was there to drop off the package.

Tan said the product was not what he ordered. He wanted the driver to open the package and test the device.

Tan grabbed a dog and wanted the driver to try the device. It is not clear who the dog belonged to. He was loud and insisted.

The driver said no. He told Tan to contact the seller directly.

The driver said he could not handle returns or exchanges. He told Tan to file a complaint.

Tan hit the driver in the face. The driver's nose bled. Tan also used the dog as a weapon.

Tan chased and yelled at the driver.

Nguyen Duy Tan attacked a delivery driver in HCMC.

When there is a problem with a product, customers can record a video and file a complaint online. They can return the product if it is wrong or damaged.

The authorities said violence will be handled according to the law.

The police warned people to stay calm during conflicts and not use aggressive behavior.