A U.S. nuclear-powered aircraft carrier, USS Abraham Lincoln, is now operating in the Arabian Sea and Gulf region after being rerouted from the Indo‑Pacific as Washington warns Iran over its nuclear programme,

Scientists studying ancient ocean fossils found that the Arabian Sea was better oxygenated 16 million years ago, even though the planet was warmer than today. Oxygen levels only plunged millions of years later,

U.S. Central Command said the drone "aggressively" approached the USS Abraham Lincoln as it was crossing through the Arabian Sea.

Iran wanted the meeting to take place in Oman as a continuation of previous rounds of talks held in the Gulf Arab country on its nuclear programme, asking ‍for a change of location from Turkey to avoid ​any expansion of the discussions to issues such as Tehran's ballistic missiles,

Iran has tentatively agreed to resume nuclear talks with the United States as it tries to avert the threat of further military strikes, in what would be the first such negotiations since the Trump administration bombed three of Iran’s nuclear sites last summer.