UK Army SAS (Special Air Service) Anti-terror exercise comes a day after “jihadi bride” Sally Jones threatened London with summer bombing campaign on Underground.

In the event of an attack, SAS would swoop into action on the £43million heli-plane nicknamed the “Transformer”, Daily Mail reports.

SAS Choppers have put on an extraordinary show of force over the skies of London in their top-of-the-range new anti-terror helicopters.

Elite forces were spotted flying over landmarks such as Big Ben, the Shard and the London Eye, during an apparent training exercise yesterday.

SAS troops on high alert to respond to a Paris-style strike in the UK are training to use the V22 Osprey at Stirling Lines in Credenhill, Herefordshire.

People in the capital were quick to spot the Ospreys as they roared above, with many taking to social media to comment on the awe-inspiring choppers.

Sally Jones taunted the public on Wednesday by tweeting: 'You all scare so easily... it only takes a few tweets, because you are pathetic England.'

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