LAGOS, Nigeria (AP) — Thousands of Nigerian fishermen have rejected an offer of $50 million from Royal Dutch Shell for “some of the largest oil spills in history,” their British lawyers said Friday after winning a landmark court ruling.

Shell already accepts responsibility for paying compensation and cleaning up spills caused by its own failures. But the London High Court decided that Shell can be held legally liable for spills caused by oil thefts, if it fails to provide reasonable protection for its pipeline infrastructure.