Labour leader Sir Keir Starmer will be investigated by Durham Police over allegations he broke lockdown rules in April 2021 by drinking beer with colleagues, the force said.
The Labour leader was pictured drinking a beer with colleagues when rules still banned social mixing.
Durham police said they would begin the investigation into the potential lockdown breaches after receiving “significant new information”.
In a statement, the force said: “Earlier this year, Durham Constabulary carried out an assessment as to whether Covid-19 regulations had been breached at a gathering in Durham City on April 30 2021. At that time, it was concluded that no offence had been established and therefore no further action would be taken.
“Following the receipt of significant new information over recent days, Durham Constabulary has reviewed that position and now, following the conclusion of the pre-election period, we can confirm that an investigation into potential breaches of Covid-19 regulations relating to this gathering is now being conducted.”
A Labour Party spokesperson said: “We’re obviously happy to answer any questions there are and we remain clear that no rules were broken.”