The picture at RAF Fairford in Gloucestershire has changed several times since last night. Fenestra TI has published a short threat brief setting out what is confirmed, what is not, and what to watch. We will update it as the picture develops.
What We Know
- Five men arrested. Gloucestershire Police say that at 00:45 on 27 September they received a call about three suspicious vehicles travelling towards RAF Fairford. Armed officers responded and arrested five men on suspicion of offences under the Explosives Act.
- Major incident declared. Homes in nearby Whelford were evacuated, Army bomb-disposal specialists examined the vehicles, and counter-terrorism police are leading the investigation.
- The US alert came first. RAF Fairford, which the US uses for bomber operations, had been raised to FPCON Delta, the highest US force-protection level, around two hours before the police call.
How the Picture Has Changed
- Early reports this morning said "several men" had been arrested. Police have since confirmed five.
- Reporting initially focused on the arrests. It is now clear the base was already on its highest alert level the evening before.
- Details are still coming in, and some claims circulating online remain unconfirmed.
Inside the Brief
- Timeline — from the months leading up to the incident to the police statement, in UK time.
- What we know and what we don't — confirmed facts kept separate from open questions.
- Indicators to watch — the developments that would change the picture.
- Implications — practical points for sites near UK bases hosting US aircraft, for defence, aviation and critical-infrastructure organisations, and for communications teams.
Download the threat brief (PDF)
Get in touch if you're responsible for people, sites or travel near UK military bases and would like to discuss what this means for you.