PHOTO: REUTERS
Offering his sympathies to the people of Nice over the "unspeakable act of terror on a day of celebration", Khan said: "Today we will be reviewing our own safety measures in light of this attack."
World reacts to Nice 'terrorist' attack
Speaking during a visit to Gatwick Airport he added: "Londoners today stand united with Nice and all of France in our grief.
.@SadiqKhan visited Gatwick today to hear about our £1.2bn capital investment plans. https://t.co/zeCg8FbiQA pic.twitter.com/Tuj60isZiX
— London Gatwick LGW (@Gatwick_Airport) July 15, 2016
"They will not win. Not in France, not in London, not anywhere.
"We will defeat their poisonous and twisted ideology."
While Paris and Brussels have both suffered devastating extremist attacks in the past year, Britain has been spared a major assault since the July 2005 bombings in London's public transport system.
After the November attacks in Paris, in which 130 people were killed, English football fans attending a France-England game memorably sang the French national anthem the Marseillaise to show solidarity with their neighbours.
At least 84 people have been killed in France after a truck ploughed into a crowd in the French resort of Nice, in what President Francois Hollande on Friday called a “terrorist” attack on revellers watching a Bastille Day fireworks display.
At least 84 killed in France as truck plows into crowd
Interior ministry spokesperson Pierre-Henry Brandet said 84 people were killed and scores injured, including 18 in “critical condition.”
The driver was shot dead after barrelling the truck two kilometres (1.3 miles) through the festive crowd on the palm-lined Promenade des Anglais, sending hundreds fleeing in terror and leaving the area strewn with bodies.
Politicians from around the world have reacted with horror after the attack.
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