A spokesman for the Deputy Prime Minister Nick Clegg said: "This is a personal tragedy for Chris, Vicky and their families.
"After their sentences are served, I hope they'll be given time and space to rebuild their lives."
More top news
The UN has said it is deeply concerned by reports hundreds of Syrian men have disappeared amid a mass exodus from rebel-held areas.
A man suspected of planning a terrorist attack has been arrested in Rotterdam after police found a loaded AK-47 in his apartment.
Another mild day with highs reaching up to 13C degrees in mild southerly winds