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Live updates: Westminster attack investigation

Police and intelligence agencies are mounting a massive investigation to establish what led Khalid Masood to carry out the attack on Westminster.

There have also been calls for security services to get access to encrypted messages such as WhatsApp after it emerged that Masood used the messaging service moments before the attack.

Here is the latest on what we know:

  • Police have arrested a 30-year-old man in Birmingham in connection with the attack
  • Another man of 58 who was arrested on Thursday remains in custody
  • Scotland Yard have said the attack was over in just 82 seconds
  • They believe Masood acted alone and it may never be known why he did it
  • Masood ploughed a Hyundai i40 across Westminster Bridge and stormed the Parliamentary estate armed with two knives, fatally stabbing Pc Keith Palmer before being shot dead by police
  • Three other innocent people died in the attack on Wednesday
View all 44 updates ›

Counter-terror police search home near to Masood house

An unmarked van and a West Midlands Police van were parked close to the searched property. Credit: PA

Counter-terrorism police have been searching a home in Birmingham over the weekend where friends of Westminster attacker Khalid Masood lived.

Officers were seen by neighbours on Saturday at the maisonette in Bredon Croft, Hockley, less than 200 yards from a property Masood had lived in until the end of 2016.

Specialist police search teams were still at Bredon Croft home on Sunday removing bags of evidence.

Meanwhile, a 58-year-old arrested in Birmingham remains in custody.

The hunt for the 52-year-old Masood's accomplices saw 11 people held after raids across the country.

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