Tessa Gregory, a partner at Leigh Day, the law firm representing the bereaved Afghan families, said My Pughsley's testimony "raised potential failings at almost every stage of the investigation".

"We are working with the lead medical examiner and the NHS in Wales to understand where the delays are, and how bereaved families can be provided with additional support at such a difficult time."

The MPs spent six months listening to "harrowing" experiences from patients, bereaved families, clinicians and academics.

Wes Streeting has praised bereaved parents in Leeds who have called for an urgent review into maternity safety in the city, and called their testimony "shocking and chilling".

The couple, who connected with other bereaved parents after setting up a Facebook group, believe there are many more affected.