The Runner 4 vessel oil spill occurred in the ice-covered Gulf of Finland off the coast of Estonia. The oil spill was caused by the sinking of the Dominican-registered cargo ship Runner 4 on March 5, 2006, after collision with the Malta-registered cargo ship Svjatoi Apostol Andrey. This oil spill was very difficult to respond to and to recover oil due to severe ice conditions.  18,000 liters of heavy & light fuel was spilled into broken ice conditions.

A week after the ship sank, the Estonian Border Guard sent its multipurpose vessel EVA-316 to start the clean-up operations. Finnish oil spill response vessels Hylje, Halli and Seili also carried out response and recovery operations, successfully deploying the Lamor Bucket Skimmer. 15,000 liters of oil was collected.