The Pirate Bay Web site’s supporters started to get angry with all the trial that has been going on for four days in Sweden. The copyright infringement trial reached its fourth day on Thursday, while some other bad news struck the authorities.

Supporters of the four men behind the Pirate Bay Web site had hacked the Web site of the International Federation of the Phonographic Industry (IFPI). The authorities blamed the intruders as being fans of the Pirate Bay, as they had left a message complaining about the IFPI’s involvement in the trial.

The message said that the “ruthless hunt” led by the IFPI, Warner Bros. and the other companies which are involved in the trial against Pirate Bay resulted in a trial in which all of the four men charged with copyright infringement are innocent. The responsible ones also wrote that this was a war declaration against “antipiracy outfits and the industry players behind them."

According to Digital Media Wire, Peter Sunde Kolmsioppi, the co-founder of Pirate Bay, asked the hackers to stop with all the war stuff. He wrote that they didn’t need any kind of support and asked the ones who read his statement to stop, for their sake.

Fredrik Neij and Gottfrid Svartholm Warg, two of the defendants of Pirate Bay, took the stand and were asked questions both by a state prosecutor and recording industry lawyers. The responses Neij gave left aside the question about the site’s administration and when the plaintiff counsel Peter Danowsky showed Neij a signed contract showing that he had been involved in the operations for the Web site, Neij peacefully said that he hadn’t read the contract.

The trial will go on in the next days to see whether the four men behind the Pirate Bay business will get charged for allowing their users to free download copyrighted content.