Transport bosses have cancelled numerous trains today (Monday June 27) and slowed others as rail infrastructure struggles to deal with the mini-heatwave.

Soaring temperatures on overhead power lines have resulted in cancellations between London Liverpool Street and Essex and Suffolk.

Thirty-five trains on the Great Eastern Main Line have been cancelled, including four on the National Express East Anglia Southend to Liverpool Street line - which stops at Romford.

However, the Network Rail said it intended to operate a full service for the evening rush hour.

The commuter metro service between Shenfield and London Liverpool Street is running as normal, the spokesman added.

Some hourly services from London to Ipswich stopped from midday, while others will terminate at Colchester.

Other services have been hit by emergency speed reductions, in some cases as much as 60mph.

The spokesman said: “Overhead line equipment is subject to major renewal which will prevent the need for speed restrictions in the long term.

“We intend to operate a full AM and PM peak service.”

The mercury is expected to hit 33 degrees Celsius in London and across the east of England today.