This is the moment a kindhearted restaurant manager and his waiters are attacked by homeless people when they stop giving them free food at the end of the day.

The gang had grown accustomed to being given the leftovers at the restaurant in the popular seafront neighbourhood of Barceloneta in the city of Barcelona in Spain.

The manager decided to stop encouraging the young men when one of them was accused of stealing a bag from one of his waiters.

The incident was caught on CCTV camera and shows the restaurant manager having an argument with one of the young men wearing a black cap, who suddenly punches him in the face.

In that moment, one of the waiters approaches the attacker to calm the situation but ends up being attacked as well.

While the other young men try to stop their friend from continuing the fight he manages to hit another waiter.

When the situation escalates, the restaurant manager is seen getting a wooden plank along with another waiter trying to fight back.

But then, all of the thugs get involved in the fight as someone from the restaurant throws a chair towards them. The thugs then manage to take the planks and the chairs and use them against the restaurant staff before running away.

Reportedly, the young men are known to be involved in fights and violent robberies.

According to a restaurant worker, they visit the restaurant daily in order to ask for the food leftovers.

An unnamed waiter said: “In the afternoon they stole a bag from one of the waiters that only carried a pen and a dirty shirt. We got angry and decided not to give them food. When we refused, the fight started.”

The police have opened an investigation.