The Suffolk Accident Rescue Service (SARS) saw an increase in the number of call outs it received in 2014.
The emergency medical charity is a voluntary organisation which is mobilised to serious or life-threatening incidents which require specialist critical care resources.
SARS volunteer doctors and paramedics responded to 326 calls for assistance from the Ambulance Service last year which was an increase of 36 on the previous year.
SARS attended 253 incidents in over 100 different locations primarily in Suffolk. The remaining call outs were stood-down en-route.
Bury St Edmunds saw the highest number of incidents attended (20) with Stowmarket Haverhill, Ipswich and Felixstowe also seeing regular call outs.
Ninety nine SARS call outs were for Road Traffic Collisions which was a similar figure to 2013 but SARS specialists were called to attend significantly more cardiac arrests last year (60) than in 2013 (43).
SARS used 17 autonomous responders in 2014 (nine doctors, eight paramedics) but also ran 22 team shifts on winter evenings (drawing from an additional group of doctors, paramedics and other critical care practitioners) to provide additional critical care coverage in the Suffolk area.