Find out below the different ways you can tell us about possible terrorist activity either in the UK, or that might affect the UK. Even if you’re not sure, please let us know so that we can investigate.

Is it an emergency?

If you suspect an immediate danger, please move away and call 999 now.

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Report possible terrorist activity.

Thank you. If you’d like to talk to someone about your concerns, please call the Anti-Terrorist Hotline on 0800 789 321.

Alternatively, click ‘Start’ to complete our quick and simple online form. Our team will review your information within 2 hours and get back to you if needed.

Both services above are monitored 24 hours a day.