An oil slick covering approximately 2,000 square meters has been caused off the Myrtos coast of Cephallonia island from the sinking of a Togo-flagged freighter on Thursday morning.

Harbor officials opined that the area is not at risk of pollution from the slick caused by the tanker "Christine", since it is comprised of biodegradable oil by-products, while floating dams and absorbent materials have been put in place to prevent possible leakage of pollutants from the shipwreck.

The wreck of the "Christine" was located by an amateur fisherman on Thursday 1.5 nautical miles off the bay of Myrtos after he spotted a life-raft adrift near the spot.

The freighter's six-member Ukrainian crew managed to swim to safety, emerging at Fiskardo beach, and went to the local port authority on Thursday afternoon.

They told port authorities that the freighter, which was sailing from Albania to Bulgaria carrying three vehicles, developed engine failure and a rift, and sank after taking on water.

The six men were arrested, and were given at their request a 48-hour postponement for testimony.

A preliminary investigation into the circumstances of the incident was continuing on Friday.