Italian league halted by violence
A fan is led away after violent scenes at the Catania-Palermo match
A supporter is injured during the violence at the Stadio Massimino
The Italian Football Federation (FIGC) has suspended all matches indefinitely after a policeman was killed at a Serie A match between Catania and Palermo.
Officer Filippo Raciti died as violence flared during the Sicilian derby.
The FIGC has called off all this weekend's professional and amateur games, and also cancelled Italy's friendly with Romania on Wednesday.
Commissioner Luca Pancalli said: "What we're witnessing has nothing to do with soccer, so Italian soccer is stopping."
Pancalli had warned earlier this week that more violence would bring a halt to league matches after clashes between supporters and police in several cities last Sunday.
"One day is not sufficient," Pancalli added after proceeding with his threat. "Without drastic measures, we cannot play again.
"We will immediately set up a commission to discuss the situation between sport and politics. It's not possible to carry on like this."
Catania, fifth in Serie A, against Palermo, who are third, was given an early kick-off time on Friday because of fears over public safety.
We need a strong and clear signal to avoid the degeneration of this sport
Italian prime minister Romano Prodi
Prior to the start, a minute's silence had been held following the death of a club official from lower league club Sammartinese last weekend.
But the match was suspended after an hour when tear gas, used by police to break up the fighting outside the ground, drifted onto the field.
The fighting, reported ANSA news agency, was because Palermo fans could not get into Catania's Stadio Massimino until the second half.
The two teams fled the pitch for the dressing-room, with the game suspended for 30 minutes.
After the match, fans continued to fight running battles with police on the streets outside the stadium and around a hundred people were treated for injuries, while dozens with lesser injuries were taken to local hospitals.
Another police officer is also believed to be in a critical condition.
Catania club executive Pietro Lo Monaco reacted to news of the officer's death by announcing he would leave football.
"I've heard that a policeman has died," he said. "To speak of football right now seems useless. For me this is the end. I will leave the football world.
Palermo players try to get away from the tear gas during their game with Catania
Palermo's players try to get away from the tear gas
"I don't recognise myself in this world anymore. I have loved football intensely but after this right now it seems absurd."
Palermo coach Francesco Guidolin was quick to blame Catania fans for the violence.
"We won the match, but we cannot enjoy this victory," said Guidolin. "Football cannot last for much longer like this. There will be no joy in it."
The Catania prosecutor's office has announced an investigation into the incident.
Italian prime minister Romano Prodi also issued a statement.
"After the serious incidents that occurred tonight in Catania, my first thought is for the people that have been affected and for their families," he said.
"I feel a duty to say that we need a strong and clear signal to avoid the degeneration of this sport which we are seeing more dramatically and more often."
Palermo had taken the lead through Andrea Caracciolo, but Catania equalised within 60 seconds of the teams coming back out thanks to Fabio Caserta.
Palermo won the game with a controversial David di Michele goal in the 83rd minute.
Sono delle merde, la polizia doveva sparare sulla folla!
Violence could halt Italian games
Italian Football Federation president Luca Pancalli
Pancalli has appealed for calm after last weekend's violence
The president of the Italian Football Federation (FIGC) has threatened to halt all league football in the country after a weekend of violence.
On Saturday an official of amateur club Sammartinese died when he was caught up in a fight between players and fans.
Clashes between supporters and police continued in several cities on Sunday.
FIGC president Luca Pancalli said: "We are on high alert. To defend referees and the image of football, I am ready to take drastic measures."
The first outbreak of violence took place in the southern town of Luzzi.
Ermanno Licursi, 40, collapsed and died after being punched while trying to separate brawling players and fans at the end of Sammartinese's amateur game against Cancellese.
There were more clashes on Sunday which affected clubs in Serie A and B.
In Florence, a Livorno supporter needed 20 stitches in his head after being attacked by Fiorentina fans.
Police also had to battle a hundred Atalanta fans who tried to attack coaches carrying Catania fans.
And a Serie D game between Genzano and Normanna was suspended early in the second half after a linesman was hit by a drum thrown from the stands.
"I hope that with the contribution of everyone - officials, coaches and players on the pitch and also the true fans and football lovers in the stadiums - we can restore a climate of sportsmanship and respect that will avoid stopping the leagues," Pancalli added.
Just wondering, had this happened with English clubs what do you think would have happened?
All English clubs banned from Europe, England banned from the European Championships qualifiers.
What will happen here? A few words of condemnation and some hand wringing from UEFA.
Or am I being too cynical?
nope, sounds like you are spot on...hell, PSG supporters beat the crap out of a black cop after their match with Hapoel Tel Aviv because he was trying to protect some jewish supporters from the mob, among other violent incidents (one of which resulted in the death of a PSG fan at the hands of the police)...still waiting on their ban from European competition...