Runaway leaders Juventus have been ordered to close the Curva Sud for their next two home Serie A games – against Cagliari and Napoli – and been fined €50,000 following the violence that marred Sunday’s derby with Torino.

Serie A’s disciplinary tribunal made the decision yesterday after concluding that Juve supporters were responsible for throwing a paper bomb that injured nine people in the Torino section.

The fans were originally blamed for the incident but the tribunal asked for further investigations after media reports that the paper bomb could have been detonated by Torino followers.

The tribunal said in a statement that local authorities had confirmed “the original scenario” in which the device was “launched from the upper tier of the visitors’ section occupied by members of the Juventus hardcore supporters”.

Torino were also fined €50,000 for failing to prevent Juve fans taking the device into the stadium.