The long-serving journalist says it is "time to move on" after "three incredible decades".
After seven years in the job Sir Simon now becomes a life peer, the government says.
The government has pledged £3.5bn for safety improvements that are a legacy of the Grenfell Tower fire.
Boris Johnson is facing an investigation into how a refurbishment bill was initially covered.
The body was recovered from the River Thames by marine units on Wednesday afternoon.
A prison's counter-terrorism head says he accepted Usman Khan's explanation about his bulky coat.
One health board has vaccinated a higher proportion of 18 to 29-year-olds than those in their 30s.
A new pilot giving young Muslims the chance to play sport during Ramadan.
Russell Bishop's ex-girlfriend Jennifer Johnson denies perjury after he murdered two schoolgirls.
Four people died in the explosion at Wood Flour Mills in Bosley, Cheshire, in 2015.
Richard Okorogheye's best friend Hala Mohamed explains the events following Richard's disappearance.
Kirsty Maxwell's parents say if she had been from England they would have received far more help.
The pair will join Alex Jones on the BBC programme's sofa, each co-presenting for part of the week.
The telecoms giant is in "early discussions" with a number of potential partners.
The Health Secretary said the Queen had told him it wouldn't hurt.
A bumper crop of elections are being held on 6 May across England, Scotland and Wales.
The Cribbar is a fearsome surf spot that demands respect from even the most experienced surfers.
There are concerns in the party it could lead to an early election for the Northern Ireland Assembly.
The death of Julia James is being treated as murder after her body was found in woodland.
Boris Johnson is coming under pressure to declare when he paid for Downing Street flat redecorations.
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