Prime Minister Rishi Sunak says there could be a "malign actor" involved after the Ministry of Defence system was hacked.

Speaking to the media, Sunak said: "There are indications that a malign actor has compromised the armed forces payment network.

"But I do want to reassure people that the Ministry of Defence has already taken action in removing the network offline, taking it offline and making sure that people affected are supported in the right way.

"Now there's a limit to what I can say about this now, but the Defence Secretary will be making a full statement to Parliament later today."