UPDATE: All lines have now reopened according to Northern, but disruption is expected until 1.30pm. 

Trains in Bolton are being cancelled because of an emergency on the line. 

Northern services which run between Bolton and Manchester Piccadilly are seeing delays after disruption at Deansgate station in Manchester. 

An "object being caught on overhead wires" is the cause, and has seen "all lines blocked". 

Northern warns that trains which run through the station, including Manchester Airport to Blackpool North, which services Bolton station, will be cancelled, delayed by up to 45 minutes, or revised. 

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The 10.56 Blackpool North to Manchester Airport and 11.17 Manchester Airport to Blackpool North services have been cancelled, as well as the earlier 09.26 Blackpool North to Manchester Airport service. 

Northern adds: "Northern tickets may be used at no additional cost on board TransPennine Express services between Manchester Stations - Manchester Airport in both directions. 

"Northern tickets may also be used at no additional cost on board Manchester Metrolink Trams services between Manchester Stations - Manchester Airport in both directions." 

It says disruption is expected until 12.30pm, but that Network Rail engineers have arrived on scene.