Holidaymakers have been warned of travel chaos over the Easter weekend as Network Rail plans £100m of upgrades over the bank holiday.

Hundreds of thousands of passengers across the UK face delays and disruption as 13,800 engineers are scheduled to work “around the clock” to make improvements to the network.

London’s Euston Station will be most heavily affected, as it closes over the Easter weekend (19-22 April) and the early May bank holiday weekend (4-6 May) with no trains in or out of the main line station on those days.

This will have a major impact on journeys including alternative routes, longer travel times and busier trains than normal, say Network Rail.

The improvements at Euston are in preparation for HS2, Britain’s controversial new high-speed railway and includes work to clear additional concourse space to help customers move more freely around the station.