Grenades thrown and explode on pitch prior to Rosario Central vs Newell's Old Boys clash

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.

"Teams are on the pitch," wrote Newell's official Twitter account shortly before kick-off. "A few bombs are thrown onto the pitch and explode as the teams lineup for their photos. There is now smoke filling one of the penalty boxes."

Newell's then shared a video of the incident, which showed a grenade exploding on the playing surface. Rosario Central's official Twitter account are yet to report it. Incredibly, the game was merely delayed by the incident and went ahead, with Newell's winning the clash 1-0.

Newell's are one of the most famous clubs in Argentina, winning six league titles and three national cups. The likes of Diego Maradona, Mauricio Pochettino and Gabriel Batistuta have represented the club. Lionel Messi played for their academy before joining Barcelona.

Newell's have developed a cult following in the UK in recent years thanks to Marcelo Bielsa's four-year spell at Leeds. Bielsa started his managerial career at the Argentine club,