That's the end of our live coverage for today.
Here's a recap of what has happened:
- The government has said it does not think it necessary to refer the leak to the police and the prime minister's de facto deputy said Theresa May considered the matter closed.
- In the Commons, MPs have called for a criminal inquiry and an investigation into whether the Official Secrets Act has been breached.
- Met Police Commissioner Cressida Dick has said Scotland Yard would need a referral from the Cabinet Office to investigate.
- It follows the sacking of defence secretary Gavin Williamson, who has strenuously denied being responsible for the leak.