The terrorism threat level in the UK has been increased from 'substantial' to 'severe', meaning an attack is "highly likely."
The decision comes a day after an explosion at a hospital in the English city of Liverpool, which police have declared "a terror incident."
From London, Benji Hyer reports.
IN: Following an emergency
OUT: SOC
DUR: 0:49 inc SOTs
http://www.fsnradionews.com/feeds/1115liverpool-bh-generic.mp3