Diners at a vegetarian restaurant were left stunned earlier this week after finding chunks of meat in their noodles.

Bewildered to find meat in meals at a vegetarian eatery, customers complained to local authorities, and that led to some gruesome discoveries.

A study of the meat found it was not beef or pork but in fact human flesh.

Thai police made the grim discovery of a human body after restaurant patrons reported meat in their vegetarian dish

An inspection of the kitchen found blood splattered on the walls and human flesh on the floor

An investigation of the premises then found a kitchen area where the walls and floor were spattered in blood and there were chunks of flesh on the ground.

Worse was to come for the horrified Thai police, as they found the decaying corpse of a 61-year-old man in the property's septic tank.

The restaurant appeared to have been abandoned when officers arrived. As of Wednesday, the owner was on the run.

The disfigured body was later identified as that of a regular patron of the restaurant.

A frequent customer, Prasit Inpathom was last seen having drinks at the restaurant on October 21 by his brother.

According to local publications, Prasit was involved in a verbal altercation with the boss of the restaurant.

According to reports, the body found in a septic tank in the restaurant was a frequent customer who had a fight with the owner

According to the reports, the fight escalated and the 61-year-old sustained fatal injuries.

He was hit in the head with a blunt object and had six stab wounds in his stomach and leg.

Police allege the owner's intention was to get rid of Prasit's corpse by grinding it up and serving parts of it to customers.

It's unknown whether any customers consumed the human flesh.