"It has been confirmed that it is a Russian Navy vessel. It has 88 people on board," the spokesman said, adding that a relief operation was underway.
The distress call came at 8:36 a.m. GMT.
He also said that according to preliminary information no one on board the vessel was injured. The cause of the SOS signal may have been, he added, a possible mechanical failure. The boat is drifting about 13 nautical miles off the coast of Ikaria.
"The vessel needs to be towed away to the nearest port to fix a [possible] technical failure. We will need a large towboat for this," the spokesman said, adding that currently two Super Puma helicopters and a military C-130 aircraft of Greek Air Force were working at the scene and a Greek Navy frigate was on its way.
Captain First Rank Igor Dygalo, a spokesman for the Russian Navy, said that the vessel in distress was a floating repair workshop and had no weapons on board.
