Police on Tuesday arrested two local men, aged 49 and 17, along with a 34-year-old Albanian man, on charges of setting up a makeshift heroin lab off the Athens-Corinth national highway.
Acting on a tip-off, police spotted the suspects and arrested them.
More than 1.5 kilos of heroin, 10 grams of cannabis, a 30-ton hydraulic compressor, a precision scale, a large number of plastic packets, two cars and other objects were confiscated.