🚢Three Russian shadow fleet oil tankers have been damaged by blasts in the last month in separate incidents around the Mediterranean, with the causes unknown - Reuters

An explosion caused a one-metre inward breach below the waterline on the hull of Greek-operated crude oil tanker Seajewel at a port in northern Italy on Saturday, one of the shipping sources said. A second blast occurred 20 minutes later on the same vessel without causing further damage.

Another vessel operated by Thenamaris, the crude oil tanker Seacharm, was also damaged by a blast off the Turkish Mediterranean port of Ceyhan in late January, two of the sources said.

In a third incident, the Liberia-flagged chemical and products tanker Grace Ferrum was damaged off Libya in February, three sources said, with one adding that the vessel would require a salvage operation.