Mark Rowley said two more arrests were made
Police made the arrests overnight in the West Midlands and the North West of England, acting deputy Met Police Commissioner Mark Rowley said during a briefing this morning.
He revealed two of the victims of Khalid Masood's attack remain in critical condition in hospital.
Masood's birth name was Adrian Russell Ajao, Scotland Yard added.
The fourth victim was named as 75-year-old Leslie Rhodes, of Stretham, south London.
He died in hospital yesterday after his life support was pulled.
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