Trains were unable to run on the Victoria Line for over two hours on Tuesday morning due to a casualty on the track at King’s Cross St Pancras.
The London Ambulance Service were called at 7.07am to reports of a person being hit by a train at the busy London station.
The first paramedics arrived at the scene in around three minutes but a person was pronounced dead at the scene.
Transport for London warned there was no service from 7.15am on the entire Victoria Line while the emergency services dealt with the incident, as thousands tried to make their way to work.
The busy Tube line reopened with severe delays around two hours later.
Commuters in west London were also unable to use the District Line between Turnham Green and Ealing Broadway on Tuesday morning while TfL fixed a signal failure at Ealing Broadway.