Welwyn Hatfield trains have been abruptly halted because someone was hit by a passenger service at Welham Green.

A spokesman for Govia Thameslink told the Welwyn Hatfield Times that a “person” had been struck by by the 10.35 London King’s Cross to Peterborough service at about 11am.

All lines through Welham Green have been blocked because emergency services are at the scene, with services diverted through Hertford North, causing delays of up to an hour.

The spokesman said disruption was likely to continue to about 2pm, but stressed this was merely a provisional estimate.