TEHRAN, Iran – The largest ship in the Iranian navy caught fire and later sank Wednesday in the Gulf of Oman under unclear circumstances, semiofficial news agencies reported.The Fars and Tasnim news agencies said efforts failed to save the support ship Kharg, named after the island that serves as the main oil terminal for Iran.
The blaze began around 2:25 a.m. and firefighters tried to contain it, state TV said. The vessel sank near the Iranian port of Jask, some 1,270 kilometers (790 miles)…