Greater Anglia has announced it is running less than half of their services on Thursday because of the extreme heat in East Anglia.

The company says it is "working on the details" regarding tomorrow's timetable, after Network Rail imposed speed restrictions on the tracks.

High temperatures could cause tracks to buckle and bend, while trains running at lower speed will help to reduce pressure on the lines.

MORE: Region hit by 15,000 lightning strikes overnight - with highs of 37C on the way

A spokesman said: "We'll be operating a significantly reduced service because of the extreme hot weather and speed restrictions that will need to be imposed.

"We're working on the details we will publish as soon as possible but our advice is NOT TO TRAVEL Thursday."

For those wishing to use their services, the spokesman added: "We are doing all we can to keep people moving during the extreme heat.

"Windows and doors will be kept open when trains are on platforms or in depots and air conditioning is running on trains 20 minutes before they enter service.

"We would encourage people to carry a bottle of water with them when they travel. Bottled water is available from some staffed stations and customers can refill their bottles for free at 11 stations across our network, including Ipswich and London Liverpool Street.

"We would advise passengers to check before they travel and allow more time for their journeys. All travel information will be posted on our website, app and on Twitter."

MORE: RSPCA warning: 'DO NOT walk your dog in the hot weather'

Free water refilling stations have been installed at Colchester, Ely, Ipswich and Witham, while Network Rail has also installed two fountains at Liverpool Street.

Commerical and customer service director Martin Moran added: "We're very sorry for the inconvenience caused to customers by this reduced service.

"It's impossible to run our usual services if trains have to go at such a reduced speed, so we are asking people not to travel unless absolutely necessary

"Reducing the service for one day is preferable to disruption that a buckled rail could cause which would be longer, unplanned and even more inconvenient for customers"

It is not yet known which services will be affected. Greater Anglia said it will be releasing the amended timetable shortly.