FILE - This May 13, 2019, file photo provided by the United Arab Emirates' National Media Council shows the Norwegian-flagged oil tanker MT Andrea Victory off the coast of Fujairah, United Arab Emirates. International investigators believe last month's attacks on oil tankers in a United Arab Emirates port were led by a foreign state using divers on speed boats who planted mines on the vessels. (United Arab Emirates National Media Council via AP, File)
FILE - This May 13, 2019, file photo provided by the United Arab Emirates' National Media Council shows the Norwegian-flagged oil tanker MT Andrea Victory off the coast of Fujairah, United Arab EmiratShow more

A month of escalation: how two tanker attacks in the Gulf unfolded