Yulia Skripal, the poisoned daughter of Russian ex-spy Sergei, has been discharged from hospital, the BBC understands. The 33-year-old was released from Salisbury District Hospital on Monday and taken to a secure location. The hospital said: “This is not the end of her treatment but marks a significant milestone.”

Her 66-year-old father remains in hospital and is “recovering more slowly than Yulia”. The pair were taken to hospital on 4 March after being exposed to the toxic nerve agent Novichok. The father and daughter were found slumped on a park bench in the centre of Salisbury.

Wiltshire Police Det Sgt Nick Bailey, who attended the scene, was also treated in hospital after being exposed to the nerve agent, but has since been discharged. A statement from Ms Skripal released through the Metropolitan Police last week said her “strength is growing daily”.