The delicate rescue mission aimed to head off a major environmental disaster after the oil tanker was attacked by Houthi rebels off the coast of Yemen last month.

Satellite imagery obtained by Business Insider captures the difficult mission to rescue an oil tanker stranded in the Red Sea nearly a month after the Iran-backed Houthi rebels first attacked the vessel.

Yemen’s Houthi rebels have claimed they shot down another American-made MQ-9 Reaper drone, with video circulating online showing what appears to be a surface-to-air missile strike and flaming wreckage strewn across the ground.