Liverpool is becoming the first major city to have widespread public access to defibrillators. 999 operators will be able to direct callers to the nearest one.
The scheme will be launched later today after a campaign in memory of 12-year-old Oliver King, who died of a sudden cardiac arrest.
More top news
Very mixed weekend - best day Saturday - windiest and wettest on Monday
This is the unbelievable moment a pedestrian in Manchester, comes inches from being mown down by a biker.
A retired officer from South Yorkshire police says he doesn't accept inquest verdicts.