The East of England Ambuance Trust has announced it is putting 15 more full-time ambulances on the roads from Monday. It follows months of criticism over poor response times and cuts to services.
There will also be a recruitment drive for 200 more frontline staff.
The dramatic announcement - which affects ambulance stations in Essex, Cambridgeshire, Norfolk and Suffolk - came just hours after the latest protest over planned cuts in North Norfolk.
More top news
Paralympic gold-medallist Louis Rolfe was treated to a hero's welcome when he returned to his Cambridge college this afternoon.
A village in West Norfolk village is mourning the loss of a campaigner who battled to stop its fire station from closing.
Low pressure keeps the weather unsettled this week.