The reservoir is one of several operated by DWP across the city, which have a combined capacity of more than 4.1 billion gallons of water.

Britain has relatively little capacity to store gas, but is has more than it did compared with a few years ago.

Los Angeles Fire Department Chief Kristin Crowley agreed, adding: “Together, these fires are stretching the capacity of emergency services to their maximum limits.”

The project is expected to reach full capacity by the end of 2027.

An emergency consultant at the Ulster Hospital said the situation there was "dire" and they are currently running significantly over capacity.