The Scottish Parliament’s Presiding Officer has delayed the announcement of the government’s tax and spending plans to investigate a potential leak to the BBC.

The state broadcaster published a story during First Minister’s Questions on Thursday which said Deputy First Minister John Swinney would increase taxes to cope with the cost-of-living crisis.

The story caused uproar in the chamber, with three MSPs – Tories Murdo Fraser and Stephen Kerr, and Labour’s Neil Bibby – urging Presiding Officer Alison Johnstone to take action.

Ms Johnstone has previously sanctioned ministers for leaks, not allowing them to make a statement in Holyrood and instead moving straight to questions.

Upon entering the chamber ahead of the statement on Thursday, the Presiding Officer said: “Members will be aware of my response to points of order raised at the end of First Minister’s Questions regarding information related to this afternoon’s budget statement.

“As I said at that point I would investigate this matter, I have been unable to conclude my deliberations in the time available and I am therefore suspending this meeting for 30 minutes.”

Ms Johnstone then swiftly left the chamber.