London Ambulance Service

The London Ambulance Service NHS Trust (LAS) is an NHS trust responsible for operating ambulances and answering and responding to urgent and emergency medical situations within the London region of England. The service responds to 999 phone calls across the region, and 111 phone calls from certain parts, providing triage and advice to enable an appropriate level of response.
It is one of the busiest ambulance services in the world, and the busiest in the United Kingdom, providing care to more than 8.6 million people, who live and work in London. The service is currently under the leadership of chief executive Jason Killens and chair Andrew Trotter.