Disruption on East Coast between Kings Cross and Berwick-upon-Tweed, and between Kings Cross and Leeds due to adverse weather conditions.
Tickets being accepted on First Capital Connect, First Hull Trains and Grand Central services.
Northbound trains between York and Darlington are subject to delays of up to 40 minutes.
All other East Coast services in England are liable to delays of up to 30 minutes.
More top news
Stephen Unwin and William McFall were handed whole life sentences for the brutal murder of 28-year-old Quyen Ngoc Nguyen last August.
Part of the eastbound carriageway in Middlesbrough was closed for several hours and will be reduced to one lane in the coming days.
Three horses have died in separate incidents at Hexham racecourse. The British Horseracing Authority has said it is investigating.