Chefs in Mexico City have made a huge sandwich weighing a whopping 700 kilograms.

Local authorities and employees from 55 businesses rolled up their sleeves to help with the preparation of the giant snack.

Thousands of pieces of bread, lettuce, onion and tomato were mixed with more than 70 ingredients, including hundreds of litres of mayonnaise, mustard and spicy sauces.

Each section of the super sandwich had a different filling.

Despite its size, it did not quite match up to the biggest sandwich ever made.

That honour belongs to one made in the US in 2005, which weighed in at 2467.5 kg.

Organisers of the event in Mexico City hope more people will now choose to snack on traditional Mexican sandwiches, rather than fast food.