Grenades exploded on the pitch just moments before Rosario Central played bitter rivals Newell's Old Boys on Sunday afternoon, the latter club's Twitter account shockingly revealed. This is on the same day a fire broke out of Ajax's stadium hours earlier.
The lethal bombs were hurled on to the playing surface by supporters. It's unclear which set of fans committed the act and whether anyone was injured. The game was delayed due to the incident to fix the holes left in the pitch and conduct a security review.
The fixture is known as the Clasico Rosarino and has existed for more than a century. Rosario Central and Newell's Old Boys are both located in Rosario, a city in north-east Argentina. Other clubs play in the city, yet Rosario Central and Newell's are the two biggest.