Emergency work will be carried out on the rail line at Hatfield overnight – but First Capital Connect bosses say they expect a normal service to run tomorrow (Tuesday).

The work on overhead power lines is set to be done by Network Rail engineers following storm damage.

Thousands of commuters were unable to travel today because of train cancellations.

A statement from the rail company said: “We expect to run to the full timetable tomorrow (Tuesday) but urge passengers to check before they travel on the First Capital Connect website and on Twitter @firstCC, especially on the Thameslink route at Radlett where Network Rail will be carrying out emergency engineering work right up until start of service tomorrow morning.”

Although many routes have now reopened, rail chiefs are still urging passengers to only travel when absolutely necessary.

A limited service is running between Welwyn Garden City and Moorgate, but northbound trains are not stopping at Harringay, Hornsey and Welham Green.

Passengers for Welham Green have been told to travel via Hatfield.

A First Capital Connect spokesman said: “We have redeployed headquarters staff to our stations to help passengers and we have ticket acceptance with London Buses and London Underground.

“We have emailed over 11,000 registered customers, updated all our station screens and website and we are broadcasting to 46,000 followers on Twitter.

“We are very sorry for the disruption caused.”