Syria, March 23 (FN) - ISIS has threatened to hit the UK 'harder and more bitter' after claiming responsibility for the Brussels bombings today.
Britain has ramped up security with armed officers taking to the streets near major landmarks, train stations and airports.
The heightened police presence comes after at least 34 people were killed and many more left injured in a series of bomb attacks inside an airport terminal and Metro station in the Belgian capital.
The explosions come just a day after the Belgium Interior Minister warned of possible revenge attacks after the arrest of Paris massacre suspect Salah Abdeslam in the city last week.

Picture: These three men, pretending to be air passengers, are believed to the terrorists who have carried out the Brussels airport