Anatheus remained the owner of a building when, as TVstar.gr said, while working in the basement, he found a grenade.
The incident happened in Atalanti in a building with a company and at home in the morning.
The owner and the workers were immediately removed and the police informed.
AT Locke's agents rushed home and blocked the area with a ribbon.
Shortly afterwards there were firefighters from the Atalanta and an ambulance waiting for army fireworks to pick up the grenade.
When the pyrotechnics arrived there, they carefully went into the cellar and took the grenade to neutralize it.