A yellow heat health alert has been issued this week as the summer weather is set to make a return.

The UK Health Security Agency has put an alert in place from 1am on Wednesday morning until 9am on Thursday.

During this time, people are urged to expect some disruption to health services.

READ MORE: Two Sussex beaches named among 'dirtiest' in country

The UKHSA said there is likely to be an increased use of healthcare services by the vulnerable population such as babies and the elderly, with an increase in the risk of mortality.

Indoor environments are also expected to become very warm throughout this time.

A spokesman for East Sussex County Council said: "Check on elderly neighbours and relatives. Drink plenty of cool drinks to keep hydrated."

The heat alert comes after The Met Office has predicted temperatures could reach up to 23 degrees, with sunshine expected across both days.

Temperatures are then expected to get hotter as the week goes on, with 26 degrees predicted on Sunday.