A lengthy stretch of coastline from Sharjah to RAK has been shut for nearly three. Sharjah shuts Al Hamriya Beach, and Ras Al Khaimah closes all beaches until further notice after a spill was detected off Umm Al Quwain. Closures follow similar measures in Umm Al Quwain and Sharjah; authorities assess environmental impact of oil. An oil spill from the damaged tanker Gem No.