Pentagon officials have spent years spreading disinformation about UFOs as part of attempts to hide secret weapon programmes at Area 51, a report has claimed.

The row between Donald Trump and Elon Musk was triggered by months of intense stress on both sides, and the public battle between the US president and the billionaire donor needs to stop, Mr Musk&s father told Reuters yesterday.

US president Donald Trump last night said the US and Iran would continue talks on Thursday for a nuclear deal, adding that Tehran was a tough negotiator and the main impediment to an agreement was over enrichment.

Russia and Ukraine exchanged prisoners of war under the age of 25 yesterday in emotional homecoming scenes, the first step in a series of planned prisoner swaps that could become the biggest of the war so far.