Front Eagle and Adalynn collided on Tuesday in the Gulf of Oman near the critical Strait of Hormuz, where a fifth of the world's oil traffic passes. Both vessels caught fire before Emirati rescue vessels evacuated the crew.
According to Ukrainian intelligence, the aged tanker Adalynn has been used to circumvent sanctions against Russian oil exports.
Greenpeace, which has analyzed satellite images from the site, warns that the accident poses a major risk to the environment and wildlife. Adalynn is believed to have been carrying around 70,000 tons of crude oil at the time of the crash, the environmental organization reports.
This is just one of many hazardous incidents that have occurred in recent years, says Farah al-Hattab at Greenpeace's Middle East and North Africa branch.
The other vessel involved, Front Eagle, belongs to the shipping company Frontline, which is owned by the Norwegian-born shipowner John Fredriksen.
