Heatwave conditions intensify across parts of England and Wales as the Met Office issues a rare red warning for extreme heat.

The UK is likely to experience its hottest June day on record on Tuesday with temperatures forecast to rise above 35C (95F). Heat will build through the middle of the week, potentially reaching 40C - less than one degree Celsius below the UK's hottest ever reading. The Met Office and UK Health Security Agency (UKHSA) have issued rare red warnings for Wednesday and Thursday in parts of the Midlands, south-east Wales and southern England with significant health and infrastructure impacts expected. Amber warnings are also in force more widely across England and Wales as temperature rise up to the mid- to high 30s. Across northern England and Wales it will get to 28 to 30C, but for the Midlands, eastern and southern England, temperatures will widely exceed 33C. In some locations around the south Midlands towards Greater London, the mercury is expected to peak at around 36 or 37C. This will comfortably exceed the current June temperature record of 35.6C set in 1976. With sunnier weather across Scotland and Northern Ireland, it will also turn warmer with highs of 24 to 27C on Tuesday.