US embassy in UK has advised citizens to avoids schools, churches, tourist locations and vary their travel routes.
The Home Office is challenging judges who ruled the proscription of the group as a terrorist organisation as unlawful
PM insists he did not know security officials had recommended Mandelson be sidelined due to Epstein links.
British PM Keir Starmer said it was concerning that London's Wireless Festival had booked West in the first place.