The 155 meter long, 24779 dwt bulk freighter Thermopylae Sierra sank near Colombo, Sri Lanka.  The freighter had been at anchor since 2009 when the vessel was detained by the authorities after a cargo and crew dispute.   There was no crew on board at the time of sinking, but some 70 tons of fuel was in the vessel’s tanks.  Some 370 tons of fuel oil had been removed a month earlier.  Authorities state the vessel sank due to hull failure do to the lack of maintenance.   Officials expect some pollution to appear from the sunken vessel in the following days.