Oil residues from a struck bulk carrier reached Iran's Qeshm Island and its protected mangrove forests, while a sanctioned Russian shadow fleet tanker grounded off Oman has leaked a slick that has grown to more than 2,000 square kilometres, fouling 40 kilometres of Omani coastline.

By Jonathan Saul and Catherine CartierLONDON, Aug 12 (Reuters) - A vast oil spill from a leaking tanker has started to hit Oman's coastline, its environment agency confirmed on…

The ship is believed to be part of Russia's "shadow fleet", which Moscow uses to circumvent Western sanctions on its oil exports

Concerns of lasting damage come as oil slicks edge towards Arabian Gulf shores

Crude oil from a grounded tanker has reached Omani mainland beaches. The sanctioned vessel, Caroline Bezengi, is leaking nearly one million barrels. Contamination has spread north…