The anti-terrorism squad was called in on Friday to investigate an armed robbery in the Peloponnese amid suspicion that self-styled anarchists may have been involved.
At least four men are believed to have taken part in the robbery, during which 60,000 euros was stolen. Nobody was hurt in the incident.
Two of the robbers, wearing masks, smashed their way into the post office at Vrachneika in Achaia shortly after a security guard dropped off the cash.
It is believed the men were armed with AK-47 assault rifles and spoke Greek without a foreign accent.
They made off in a stolen Nissan Sunny, which was found burned a short distance from the post office.
A police source told Kathimerini that the robbers’ modus operandi was similar to that used by anarchists in past raids.