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A husband and wife were on Tuesday found guilty of plotting a terror attack in London ahead of the 10th anniversary of the July 7 bombings, the BBC reported.

Mohammed Rehman, 25, discussed targeting the London Underground and Westfield shopping center on social media under the name "Silent Bomber" and chemicals for bomb making were found at his Reading home.

He and his wife Sana Ahmed Khan were convicted of preparing terrorist acts. They will be sentenced on Wednesday, according to the BBC.

Rehman, who was also convicted of possessing an article for terrorist purposes, used Twitter in May to ask for suggestions on which target in London to choose.

With money supplied by his 24-year-old wife, he stockpiled the chemicals needed to make a huge bomb at his family home in Reading and even filmed himself setting off a small explosion in his back garden, the network revealed.

During his trial, jurors heard a tweet sent from Rehman's account which said, "I've rigged my house to blow at the push of a button by my bedside if the popo [police] try to raid man. Nobody gets in the way of my jihad."

An undercover investigator discovered Rehman had asked on social media whether he should target "Westfield shopping centre or London Underground".

Rehman told the investigator he was planning a martyr operation, jurors heard, and was also prolific on Twitter, posting extremist rhetoric alongside images of homemade devices and instructional material.

In one tweet, on May 12 2015, he wrote: "Westfield shopping centre or London underground? Any advice would be appreciated greatly."

Text messages between the couple were uncovered showing discussions about buying chemicals, while emails revealed Rehman had also sent Islamic State-related video clips to Khan, according to the BBC.

Speaking after their conviction, Assistant Chief Constable Laura Nicholson, head of the South East Counter Terrorism Unit, said, "These were dangerous individuals who represented a genuine threat, but through counter-terrorism policing we were able to intercept them before they could carry out their plans.

"It is clear that Rehman and Khan shared a radical and violent extremist ideology. They actively accessed extremist material on the internet and used social media to develop and share their views as they prepared acts of terrorism."

The conviction comes amid high alert throughout Europe following the recent attacks in Paris.

In early December, a man carried out a stabbing attack on the London Underground while screaming "this is for Syria".

The man had images associated with the Islamic State (ISIS) group on his mobile phone, and also allegedly had images relating to the November 13 attacks in Paris and a recent British police anti-terrorism training exercise.

The incidents illustrate the threat from radicalization, of which Britain has been a victim as have a host of other countries.

One of the more well-publicized instances of radicalization among Britons was the case of three British teenage girls who crossed the Turkey-Syria border to join ISIS in February.

The three teens, Shamima Begum, 15, Amira Abase, also 15, and Kadiza Sultana, 16, are now feared to have reached the conflict zone and are believed to be staying at a house in the city of Raqqa, a stronghold of ISIS.

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