The country's referees' chief was targeted
The Greek Football Federation has suspended all national league and cup competitions after an alleged arson attack on the home of its referees' chief.
Giorgos Bikas's property was targeted this morning.
The head of Greece's refereeing committee and his family were not at home, but the building suffered major damage.
The Hellenic Football Federation (EPO) said: "Following an extraordinary meeting, the EPO announces the decision to suspend all national football championships until the conclusion of the investigation into the causes of the fire by the fire services.
"The EPO expresses its full solidarity with Mr. George Bikas, whom he will support in every way.
"The EPO informed of its decision that the representative of FIFA and UEFA in Greece Mr. Koutsokoumnis Kostakis, who in turn informed FIFA and UEFA".
It is not the first time, Greek domestic football has been temporarily suspended.
In February 2015, crowd violence at matches led to the indefinite suspension of action.