Warships belonging to the United Nations were spotted sailing off the Lebanese coast on Saturday afternoon.
The ships sparked the curiosity of some sailors who noticed them from afar.
Initially unidentified, the origin of the vessels, at least six of which were counted by one civilian at sea, became a source of concern.
Several people have posted videos online from their boats, showing the ships sailing in a row on the horizon.
One sailor decided to take the matter to the Lebanese Navy, which had apparently been unaware of the presence of unidentified warships in Lebanese waters.
After radioing the navy, he was asked to read out the hull number of one of the ships, which were about two miles (3.2 km) away from the coast, but he said that he was too far away to see the number.
He was then instructed not to approach the vessels.
A security source later confirmed that the warships belonged to United Nations forces that had been conducting training, according to the IntelSky aircraft tracker.
