Boris Johnson's team has declined to comment on reports the police were called to his home, hours after he made it through to the Conservative leadership runoff race.
Officers attended the London property he shares with his partner Carrie Symonds on Friday, after neighbours heard screaming.
Scotland Yard says the occupants were "safe and well".
Financial Times Whitehall Correspondent, Sebastian Payne, says the big question is how Tory members will react.
He believes it would have affected Johnson's campaign during the stage when MPs decided on the final two candidates but now grassroots members are voting instead on the winner. And Sebastian Payne says it's now up to whether or not they feel any possible home life issues should impact on the outcome of the race.
About 160,000 Conservative Party members are eligible to vote with results expected in the week beginning July 22nd.
A number of election hustings between Boris Johnson and fellow contender, Jeremy Hunt, are scheduled to take in the coming days.
TV debates are also in the pipeline with ITV and Sky News pitting both candidates against each other.