'Heartbroken' friends and colleagues of former Radio 1 DJ Mike Smith, who has died aged 59 following complications after heart surgery, have paid tribute to the man they called "the consummate broadcaster."
ITV News reporter Martha Fairlie has this report:
More top news
Foreign royals will be among those at Windsor Castle for the occasion.
Diana visited the African nation a few months before her death to highlight the issue.
Argentina’s energy secretary said the massive outage occurred when a key interconnection system collapsed.