The US secretary of state's comments come as some evacuated residents near the UK air base begin returning home, amid scrutiny over the handling of suspects.
Defence secretary Wes Streeting thanked the member of the public who reported a group of masked men near the base, as Trump praised UK law enforcement's handling of the arrests, according to the Guardian.
Wes Streeting indicated UK security services had some prior awareness of the men later arrested near RAF Fairford, after a farmer who alerted police said security forces had 'dropped the ball,' according to the Guardian.
Five men have been arrested on terrorism charges after explosives were found in vans parked near RAF Fairford, a base used by the US military, as investigators examine a possible Iran connection.
UK Defence Secretary Wes Streeting said it remains too soon to attribute a suspected plot near RAF Fairford to a foreign state.
Counter-terror police say the investigation into the suspected plot has opened multiple new lines of enquiry, as UK security forces confirm awareness of the incident.
Defence Secretary Wes Streeting indicated UK security services knew in advance about a group of men later arrested over a suspected bomb plot near RAF Fairford, though he said the farmer who alerted police had only 'a partial picture,' The Guardian reported.
Five men were arrested on suspicion of preparing a terrorist act near RAF Fairford, a base used by the US, according to Al Jazeera.
Five men have been arrested on terrorism offences after explosives were found near the RAF Fairford air base, with UK authorities examining a possible Iran connection.
A resident's 999 call after spotting suspicious vans and a group of hooded men near RAF Fairford led to a rapid police response and reported arrests.
The men were arrested on suspicion of explosives and terrorism offences near the Royal Air Force base.
British counterterrorism police detained several men following reports of suspicious vehicles near RAF Fairford, a base used by US forces.
The US president said suspects held near the Gloucestershire air base had intended to inflict "big damage" on the facility.
British counter-terrorism police are investigating after five men were arrested near a base used by US forces in southwest England.
Authorities evacuated nearby homes and examined vehicles at RAF Fairford after five men were held on suspicion of preparing a terrorist act.
British police arrested five men on suspicion of terrorism and explosives offences near RAF Fairford in Gloucestershire.
Residents say a WhatsApp group first flagged suspicious vehicle activity before police began evacuating homes near the airbase.
Counter-terrorism police are leading the investigation after a bomb squad was deployed and extra security measures put in place at the Gloucestershire airbase.
Several men were arrested on suspicion of explosives offences near the Gloucestershire airbase, prompting evacuations and a bomb squad response.
Several men were arrested in a major security incident at the UK air base, which Britain has authorized US forces to use for strikes on Iranian targets, CNBC reports.