This is the moment suspected drones were filmed hovering over RAF Marham after emergency sirens rang out across nearby bases startling residents.
asserted
sirens → suspect → residents
The footage filmed on Friday evening shows what appears to be three drones floating in a chevron formation with white lights blinking intermittently near the base which is the home of the F-35 Lightning stealth fighter jet.
asserted
which → film → jet
More than 3,600 service personnel, civil servants and contractors work at RAF Marham near King's Lynn in Norfolk.
asserted
personnel → work → Norfolk
The video emerged after sirens blared from RAF Lakenheath in Suffolk and were heard near RAF Feltwell in neighbouring Norfolk following reports of suspected drone activity.
asserted
sirens → emerge → activity
Residents described hearing 'war sirens' at about 5.30pm on Friday and an announcement over loudspeakers in an American accent instructing people to take shelter.
asserted
Residents → describe → shelter
In one video of the apocalyptic scenes, sirens can be heard wailing in the pitch-black darkness of a local's garden.
asserted
sirens → hear → garden
The US Air Force confirmed that the alarm was raised at RAF Lakenheath due to 'suspected unauthorised drones' operating near the base.
asserted
alarm → confirm → base
A spokesperson said on Friday: 'This evening, USAF Security Forces personnel responded to suspected unauthorized drone activity over RAF Lakenheath.
'
asserted
personnel → say → Lakenheath
No personnel, aircraft or infrastructure were affected.
asserted
personnel → affect → ?
What appears to be three suspected drones filmed hovering near RAF Marham in Norfolk yesterday
Footage filmed by residents near the RAF airbases captured the sirens ringing out across their pitch-black gardens
The base is the home of the F-35 Lightning stealth fighter jet and more than 3,600 service personnel working there
'
asserted
base → appear → jet
We continue to work closely with our host nation counterparts to ensure the safety and security of our U.S. service members, U.S. and host nation civilians, contractors, and all of our families.'
asserted
We → continue → families
The Air Force urged anyone who may have witnessed any unusual or suspicious activity to report it to the relevant local authorities.
uncertain
who → urge → authorities
Just days earlier, the US military evacuated at least a dozen aircraft from an RAF airbase following a threat from Iran.
asserted
military → evacuate → Iran
Nine US Air Force refuelling planes were scrambled from RAF Mildenhall in Suffolk on Monday, flying to other bases in the UK, Germany and Spain.
RAF Mildenhall is the home of the 100th Air Refuelling Wing and is the only permanent US refuelling wing in Europe.
asserted
Mildenhall → refuel → Europe
It operates the KC-135 Stratotanker refuelling aircraft.
asserted
It → operate → aircraft
Three V-22 Ospreys, used by American special forces, were also withdrawn to RAF Lakenheath, where sirens were heard yesterday evening.
asserted
sirens → use → Lakenheath
The sudden evacuation was described as 'extraordinarily unusual' by a former RAF chief.
asserted
evacuation → describe → chief
RAF Lakenheath had also issued a drone warning on November 9 urging locals and those living on the base to report sightings 'immediately' to security staff or police.
asserted
Lakenheath → issue → staff
Light armored vehicle and military personnel are pictured at the entrance of RAF Lakenheath on September 27
The base is home to the US Air Force's 48th Fighter Wing, known as the Liberty Wing, which has nearly 7,000 active-duty personnel, many of whom are based at the Suffolk base.
asserted
many → picture → base
Both bases then raised their security to 'Force Protection Condition Charlie', the second-highest threat level, which is used when intelligence suggests a terrorist attack is likely.
uncertain
attack → raise → Charlie
It follows a similar exodus of bombers from RAF Fairford in Gloucestershire last month after an alleged Iranian terror plot was foiled.
asserted
plot → follow → Gloucestershire
Security has been heightened at US bases in Britain since an incident at RAF Fairford in September.
asserted
Security → heighten → September
Police found petrol, but no explosives, while searching vans near the base.
It came after a group of five men approached the base in three white vans in the middle of the night.
asserted
group → find → night
Two men were charged last month in relation to that incident, with prosecutors alleging one of them had tried to assist Iranian intelligence in Britain.
asserted
one → charge → Britain
Although Tehran denied any role, the US withdrew all of its B-1 bombers from RAF Fairford the following month.
asserted
US → deny → Fairford
A B-1B Lancer bomber pictured at the RAF Fairford, which was used to mount US strikes against Iran
A bomb disposal robot deployed by the Army's specialist explosive ordnance disposal team checking the three white vans used by the suspects at RAF Fairford last month
A spokesman for the Prime Minister previously insisted that British bases were safe, adding: 'The protection of our bases, both in the UK and across the world, is a top priority.'
But the Conservatives rounded on Labour, accusing Andy Burnham of showing 'weakness' over the risk Iran posed to national security.
asserted
Iran → picture → security
'Labour cannot keep putting their heads in the sand,' said Alicia Kearns, the Tory shadow foreign minister.
asserted
Kearns → keep → sand
'Iran continues to threaten Britain, hack our companies, and radicalise our citizens, yet this government responds with handshakes.
asserted
government → continue → handshakes
Until Burnham grows a backbone and takes defence seriously, our allies won't trust us.
asserted
allies → grow → us
Words mean nothing without real action.'
asserted
Words → mean → action
Mark Francois, a Tory defence spokesman, added: 'Britain’s national security is under threat.
asserted
security → add → threat
Our adversaries are testing our resolve, our military infrastructure, and our relationships with our closest allies.
asserted
adversaries → test → allies
'Yet Labour is showing weakness when Britain needs strength.
asserted
Britain → show → strength
And Burnham’s refusal to wake up to the threats we face is putting us in danger.'
asserted
we → wake → danger
Last month Andy Burnham said the activity at the Gloucestershire airbase was likely to have been coordinated in Iran.
asserted
activity → say → Iran
But Tehran's ambassador to the UK denied the accusations that it was involved in any plot targeting the base.
asserted
it → deny → base
Iran's Revolutionary Guard Corps said in July that the Fairford base and any other base used to launch attacks against Iran were legitimate targets.
The aircraft at RAF Fairford were used to carry out strikes on Iran during the war which Donald Trump said is now militarily 'effectively over'.
asserted
Trump → say → war
The Ministry of Defence has been approached for comment.
asserted
Ministry → approach → comment