Officials at Oslo-based shipowning firm Wilh Wilhelmsen say they can't confirm that a large oil slick spotted off Belgium stems from one of its vessels. The Wilhelmsen ship
Tricolor sank in the English Channel last year.
Belgian officials reported late Monday that they'd discovered a 30-kilometer-long oil slick in Belgian waters. They believe the oil has leaked from the wreckage of the
Tricolor
......
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