MI5 warns rightwing extremists increasingly plot attacks on UK immigration sites

MI5 chief Ken McCallum reports that the most marked trend in the agency's caseload is the shift from anti-immigration or anti-Muslim views to violence, with extremists increasingly considering attacks on immigration centres and asylum hotels. This contributes to a rise in the UK terror threat level, while Russia remains the primary state threat. The warning signals an evolving domestic terrorism landscape in the UK.