Claims safety is being put at risk by sending cars, which can’t carry patients to hospital.
SICK Brits needing an ambulance are being forced to wait hours – with emergency operators accused of sending cars instead to fiddle targets.
It comes as the NHS is expected to give 999 crews three extra minutes to respond to calls to help tackle delays.
A whistleblower claims East of England Ambulance Trust are intentionally sending rapid response vehicles to 999 calls, even though they cannot transfer the patient.
It means many are then left waiting hours for an ambulance to reach them.
Critics warn the “stop the clock” policy is putting patient safety at risk.
Lib Dem former health minister Norman Lamb told the Health Service Journal said the practice was “perverse in the extreme”.
The revelation comes as NHS bosses are expected to quadruple the time ambulances have to respond to calls.
Health service rules state 75 per cent of 999 requests classed as “life threatening” should receive help within eight minutes.