A multi-tonne truck plowed through a packed crowd celebrating Bastille Day in Nice, killing at least 84 people and wounding more than 200 in what French President François Hollande called a "monstrosity."

Police in Istanbul conducted a series raids in the city targeting Islamic State suspects, the state-run news agency reported Thursday, following the gunfire and suicide bomb attack at Ataturk Airport which killed 42 people.

It was an attack that echoed the carnage earlier this year at the Brussels airport, down to the taxi that carried the men to their target.