After the game at the Estadio Jose Amalfitani, a bus carrying Huracan fans back to the Parque Patricios neighbourhood was reportedly attacked and a fight broke out between them and supporters of arch-rivals San Lorenzo.

A 27-year-old man was shot in the chest and is in a critical condition in hospital following surgery. The three other injured men were rushed to hospital with leg and shoulder wounds.

Dr Jorge Vilesio at the Hospital Juan Jose Penna said of the critical man: "We have healed all the wounds. Now, it all depends on him.

"The patient is in intensive care as he suffered very serious wounds on the left side of the thorax, the lung and the heart."

Police are still searching for the gunman.