SkyTruth, a nonprofit environmental watchdog, is trying to track down the ship responsible for a 250 km long oil slick in the Red Sea, which it detected last week.
Sentinel-2 imagery from May 19 showed the huge slick off Sudan, estimated to be around 120,000 gallons of oil.
Out of 94 AIS vessel tracks transiting the region in the 12 hours preceding the slick, SkyTruth winnowed the potential sources down to four ships.
“The unusually large size and volume of this slick suggests it could be the result of tank washing by a petrochemical tanker, rather than bilge discharge from a cargo ship,” SkyTruth suggested in a post on social media.
