Update of what we know so farpublished at 08:54 Greenwich Mean Time 24 March 2017
This morning a 75-year-old man killed in the Westminster attack has been named by police as Leslie Rhodes from Streatham in south London.
Aysha Frade, a teacher in her 40s, and US tourist Kurt Cochran, 54, were killed on Wednesday, while Mr Rhodes died on Thursday evening after his life support machine was turned off.
- Assistant Deputy Commissioner Mark Rowley said 50 people were injured and two are still critical. One is considered to have life-threatening injuries
- Another 31 people had received hospital treatment
- Two police officers remain in hospital with "very significant" injuries.
Police said two more "significant arrests" have been made in the West Midlands and the North West.
- In total, 10 people have been arrested
- Nine people are currently being questioned by police.
- The attacker, Khalid Masood, is known to have used a number of aliases and was known to police.
- His birth name was Adrian Russell Ajao - but he had also the name Adrian Elms
Home Secretary Amber Rudd and London Mayor Sadiq Khan joined hundreds of people at a candlelit vigil in Trafalgar Square on Thursday evening to remember the people who lost their lives.