BBC News

The journalist was the first woman to hold the role after she was appointed in 2015.
The presenter was first diagnosed with the illness in 2014 and again in 2017.
Kate Morgan said "we are in the worst position that UK agriculture has ever found itself".
After 18 years in his current role, the Welsh presenter is feeling unsure about his future with the BBC.
The presenter later took to Twitter to reveal exactly what had caused the confusing moment.
Huw Edwards issued an apology after a reporter mistakenly referred to the former US president during a report on Cosby.
Shaun Ley teamed his suit and tie with something a little more casual.
"That was the Queen with her life-saving badge on her swimsuit, but I didn’t have time to tell you."
The long-serving presenter has stepped down from BBC News after almost 18 years.
His often wry takes on world events have been known to end up making the news themselves.