A decision will be made later on plans to close four A&E units in north-west London. The units in Charing Cross, Central Middlesex, Hammersmith and Ealing Hospitals could be downgraded to urgent care centres.
That would mean patients requiring accident and emergency care would need to travel to units at Hillingdon, Northwick Park, West Middlesex, the Chelsea and Westminster or St Mary's in Paddington.
NHS North West London claims the move would save money and improve care - however campaign groups say A&E facilities shouldn't be taken away from local communities.
More top news
Dozens of women gathered on Westminster Bridge to form a human chain in a show of solidarity with the victims of Wednesday's terror attack.
In a wide-ranging Peston on Sunday interview, he said Parliament security needs reviewing and the PM's counter-terror strategy is flawed.
The terror attack carried out by Khalid Masood at Westminster that left four people dead lasted less than two minutes say police.