There are numerous delays on the trains this morning after a “casualty” on the track.

This morning, there was no service between Watford Junction and Willesden Junction on the London Overground, with severe delays between Willesden Junction and Euston.

It is understood that this was linked to a “casualty” on the track, with emergency services spotted at Headstone Lane Rail Station in Harrow.

While the Overground has reopened, there is still severe delays from Watford Junction and Euston.

There was no service between Stonebridge Park and Harrow & Wealdstone on the Bakerloo line earlier this morning, however service has now resumed.

The London Ambulance service says a woman was treated by paramedics at the scene and has been taken to hospital.

"We sent an ambulance crew, a medic in a car, an advanced paramedic, an incident response officer, and hazardous area response teams. We also dispatched by road London's Air Ambulance,” a spokesperson for the service said.

British Transport Police says the incident is not being treated as suspicious.