Twelfth arrest as police probe into London attack continues
A 30-year-old man has been arrested in Birmingham by officers investigating the Westminster terror attack.
He was arrested yesterday on suspicion of preparation of terrorist acts, detained under the Terrorism Act and taken into police custody.
The man is the 12th person to be arrested in connection with the investigation, nine of whom have so far been released with no further action.
Another man aged 58, arrested in Birmingham, remained in police custody last night after a series of raids across the country.
Officers have carried out a total of 15 searches at various addresses in east London, south London, Brighton, Surrey, Carmarthenshire, Birmingham and Manchester.
Four people were killed when Islamist extremist Khalid Masood went on an 82-second rampage in Westminster on Wednesday afternoon.
Police said they now believe the knifeman acted alone, adding that, while they were investigating why he carried out the atrocity, that understanding may have died with him.
Masood drove his car along the Westminster Bridge at speed, mowing down pedestrians.
He was shot dead by police after he stormed the Parliamentary estate.
Counter-terrorism officers have spent the days since piecing together what led the 52-year-old to shed his birth name and later unleash carnage on the capital.
On Saturday afternoon officers searched a maisonette in Bredon Croft, Hockley, Birmingham where friends of Masood lived. A family who live next door said Masood used to come wearing Islamic dress and take their neighbours' children to mosque, although they did not know where.
One of the mothers at nearby Brookfields Primary School said her daughter was best friends with Masood's, but added: "I always got the chills from him."
Sabrina Hussain described how she changed her mind about taking her child, nine-year-old Skye, to his daughter's birthday party just before Christmas.
Ms Hussain (28) said: "I thought I was being a bit over-protective, but then I just thought, 'no I can't let her go' and we turned the car around and I made up an excuse saying the party had been cancelled.
"I just didn't want her to go.
"There was just something about him that wasn't right."
A childhood friend of the man then known as Adrian Elms told The Sun newspaper he first emerged as a Muslim after serving a jail sentence.
His religious conversion will fuel concerns about the rising threat of criminals being brought under the influence of hardened jihadists while in prison.
Police released specific timings of Masood's murderous spree, showing he took just 30 seconds from mounting the pavement on the bridge to crashing into the perimeter fence at Parliament and fatally stabbing unarmed PC Keith Palmer.
Meanwhile, the "selfless bravery" of Mr Palmer has been hailed by his family, who thanked those who fought to save his life. They said: "There was nothing more you could have done."
In a statement, they added: "We want to thank everyone who has reached out to us over the past few days for their kindness and generosity."