ATHENS, Greece — Some say the legendary exploits of Alexander the Great are needed to cure Greek soccer of its violence and disorder. Others are hoping for a Herculean effort to fix the problem.

The latest trouble occurred over the weekend, when the owner of PAOK Thessaloniki ran onto the field with a holstered gun on his belt to confront the referee and complain about a disallowed goal.

Ivan Savvidis, the Russian-Greek businessman who owns PAOK, didn’t use the gun on Sunday, but his actions led to yet another league suspension. In the meantime, the government decided to indefinitely stop league matches. In the potential title decider between PAOK and AEK Athens, a late goal was disallowed, leading to the uproar involving Savvidis.

Savvidis apologized for his “emotional” reaction, while a Thessaloniki prosecutor ordered a judicial investigation into the incident.

It was the latest attempt by the government to rein in Greek soccer’s powerful bosses, who have far-reaching interests in infrastructure, shipping, gambling, and the news media, and who operate against a backdrop of habitual fan violence and allegations of corruption riddled through the sport.