Three passengers on board an inflatable boat were airlifted to safety late Thursday night after their vessel rammed into the Platia rocky islet north of Poros.

The causes of the accident were as yet unknown at Friday noon while the three passengers -- the 43-year-old captain and two other persons aged 21 and 34, were taken to the Tzanio hospital in Piraeus for precautionary reasons and medical examinations.

The three passengers were airlifted by a Coast Guard helicopter.