Police will carry out a risk assessment ahead of Taylor Swift's return to London later this month to decide whether her five concerts will go ahead after shows in Vienna were cancelled over an alleged terror plot.

Scotland Yard will examine potential risks but said there is currently not 'anything of note' in terms of threats to the concerts. 

It comes after the US singer's three performances in Austria,scheduled to begin tonight,were cancelled over an apparent ISIS plot to launch a terrorist attack at her concert venue in the city. 

Swift was set to perform at the Ernst Happel Stadium on Thursday,Friday and Saturday,and is next due to play five dates at London's Wembley Stadium between Thursday August 15 and Tuesday August 20.

Policing minister Diana Johnson this morning said Scotland Yard will look at 'all the intelligence' ahead of Taylor Swift returning to the UK for a series of concerts. 

Police vehicles were photographed outside the Ernst Happel stadium on Thursday

Franz Ruf,the public security director at Austria's interior ministry,said authorities were aware of 'preparatory actions' for a possible attack 'and also that there is a focus by the 19-year-old perpetrator on the Taylor Swift concerts in Vienna,' the Austria Press Agency reported.

Mr Ruf said the 19-year-old had pledged an oath of allegiance to the Islamic State group.

He also said chemical substances were secured and were being evaluated. He did not give more details.

Barracuda Music said that 'all tickets will be automatically refunded within the next 10 business days'.

Austrian media reported the suspects' plans included driving a car into a group of revellers outside the venue before attacking with machetes and knives,as investigators also conducted tests on chemicals found at the teen suspect's property amid fears he was planning to make an explosive.

Kurier also cited several sources who claimed friends of the suspects scooped jobs as security guards at the concert,suggesting they could have facilitated the attack.

Martyn's Law is named after 2017 Manchester Arena bombing victim Martyn Hett,and is designed to help protect venues against terror attacks. It was part of the new Labour Government's first King's Speech. The speech to Parliament sets out the programme for legislation for the Government.

In July,there was a fatal knife attack on three girls,aged six,seven and nine,at a Taylor Swift-themed holiday club in Southport,which sparked riots throughout the UK.

Swift said she was in 'completely in shock' following the deaths at the children's event.

A suspect has appeared in court charged with the crime.

Swift had thanked Poland's Warsaw audiences for giving her 'the best time',and said she could not 'believe we have two cities left on the European leg of The Eras Tour',before the cancellations in Austria.

The 34-year-old singer added: 'It's truly flown by. See you soon Vienna.'

The Home Office declined to comment. 

Wembley Stadium and the Met Police have been contacted for comment.

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