Call the Midwife fans have been left in limbo after much-loved main characters Dr Turner (Stephen McGann) and Sister Julienne (Jenny Agutter) were involved in a devastating train crash.
In scenes that aired on BBC One on Sunday 13 February, Dr Turner and Sister Julienne were seen boarding a train after attending a conference alongside young nurse Nancy Corrigan (Megan Cusack).
However, as their train travelled from Chelmsford to Liverpool Street, the driver suffered what appeared to be a brain haemorrhage, which led to a fatal crash.
As the train came off of the rails and smashed straight into another oncoming vehicle, the two main characters were caught up in the tragedy.
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