Greek authorities are on alert following the dispatch of an urgent document by the Greek National Intelligence Services (EYP) in conjunction with foreign intelligence services that at least 4-5 suspects associated with ISIS have entered Greece.

The suspects, who have reportedly entered Greece with Saudi passports, landed at Athens International Airport and their detection is of top priority for the authorities.

According to sources, so far the ant-terrorist division has been unable to track the ‘jihadist’ suspects following a screening of passengers from the Middle East at the airport.