Diners in Santiago were shocked when a menu screen started showing hardcore porn.

The incident occurred last Tuesday (January 29) at a branch of fast-food outlet Popeyes in Mallplaza in the capital of Chile while members of the public watched on.

One diner is seen sitting with a pram while others wait to place an order, seemingly oblivious to what is being played above their heads.

Newsflare has blurred the footage.

The filmer suspected that the restaurant was the victim of a "disgruntled employee" or a "hacker" although this could not be confirmed.

"More people walked by laughing and recording but most people tried to ignore it or maybe didn't notice," the filmer added. "Eventually, they shut off the TV. [I] had to wait like another 25 minutes to get my combo [meal] afterwards while they sorted things out!"

Popeyes is known for its spicy fried-chicken dishes.

A disgruntled employee or a hacker got into one of the Popeye's LCD menu screens and started playing hardcore porn in front of the entire food court.