A major security operation is taking place in the Belgian capital Brussels, after the country's Prime Minister said there was a "serious and imminent" threat of an attack on the city.
He's extended a terror alert, and guests in several hotels in the center of Brussels have been warned to remain inside.
Several streets were blocked off as a series of raids were reported to have begun.
Our reporter Jack Parrock in Brussels says the authorities are pleading for silence on social media over the raids' progress.
IN: "There's a lot of….."
OUT: "…of other men"
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