Greece's top football league has been suspended - after a club president invaded the pitch with a gun to confront a referee.
Paok Salonika's Ivan Savvidis had the weapon in a hip holster.
He was unhappy about a decision against AEK Athens.
The opposing team left the pitch and refused to return.
Police are now looking for Savvidis - who was born in Georgia and is an ex-member of the Russian parliament.