Vehicle attacks are being plotted on British streets in the wake of the Manchester Arena bombing which killed 22 and injured 59, it has been claimed.  US singer Ariana Grande’s concert, packed with 21,000 fans and their parents, was struck by a suicide bomber at 10.35pm on Monday, killing scores.  Islamic State terrorists have not officially claimed

responsibility – but it has now emerged jihadi cheerleaders were tweeting about the arena four hours before the detonation.  Police revealed a lone male attacker detonated an improvised explosive device (IED) in the foyer as children and their guardians left, singing and enjoying themselves. Unconfirmed reports suggest the device was packed with nails. Police, intelligence experts and analysts have scrambled to build a picture of the attacker’s movements over the last months. READ MORE