Greek authorities have dismantled an international criminal group trafficking cocaine in shipping containers from Latin America to Europe, police said on Thursday.

Two Albanians and two Greeks were arrested after a months-long investigation launched by Greek drugs and contraband enforcement authorities in cooperation with the U.S. Drug Enforcement Administration (DEA).

Dozens of plastic bags containing more than 462 pounds of cocaine were found and confiscated in containers with shrimps at the port of Piraeus, police officials said.

DOZENS CHARGED IN INTERNATIONAL DRUG SMUGGLING OPERATION LINKED TO BRUTAL MEXICAN CARTEL

More than $141,000, a shotgun, bullets, mobile phones and documents referring to drug amounts and expected profits were also confiscated among other evidence during raids at the suspects' homes and vehicles, police said in a statement.

Based on the evidence, authorities estimate that the criminal group aimed for an illegal profit of more than 5 million euros.

The drugs were being transferred from Latin America to European countries and to Turkey, police officials said. Greece was used both as a transit point and destination for the shipments.

One of the Albanians was accused of playing a lead role in the group.

Police said that the 48-year-old man had been previously accused of operating a lab in Greece producing Captagon pills - a mix of amphetamines also known as the "poor man's cocaine".

More than 634,000 pills had been confiscated at the time.

One of the Greek nationals had been previously arrested in Costa Rica on a 2012 warrant issued by the United States and sentenced for his involvement in smuggling weapons to Europe to the now demobilized Revolutionary Armed Forces of Colombia (FARC) rebels.

The suspects were expected to appear before a prosecutor.