The two recently sunken tankers sunk because of bad weather and russian negligence and lack of any common sense on safety - they were super old (built in 60s) river tankers, which are narrow but long. So to make them "sea worthy" they need to be shortened so a section in the middle is cut away and two halves are rewelded back [1]. These tankers were never designed for the high seas at all especially during stormy conditions. They had brocken on exactly that weld spilling thousands of tonnes of oil and mazout.

Handling of this ecological trajedy by russian government is nonexistent - while having resources to handle it, there is no will at all in doing that, no care neither about sea life nor about their own people.

1. https://www.theguardian.com/world/2024/dec/15/two-russian-ta...