UK Health Security Agency issued the warning in a post shared online

The alert means it is likely there will be a rise in deaths, particularly among those ages 65 and over or with health conditions, according to the UK Health Security Agency (UKHSA)

The Met Office and the British Red Cross said everyone shown 'know the signs'

The UK Health Security Agency has extended its amber heat-health alert

UK Health Security Agency issued the warning in a post shared online