Police were called to the London home of Boris Johnson and his partner on Friday morning - after a neighbour reportedly heard a loud argument.
The Guardian reported Carrie Symonds could be heard telling Mr Johnson to "get off me" and "get out of my flat".
The Metropolitan Police told the BBC it "spoke to all occupants of the address, who were all safe and well".
In a statement, it said "there was no cause for police action". A spokesman for Mr Johnson said: "No comment".
The Guardian reported that a neighbour had told the newspaper they heard a woman screaming followed by "slamming and banging".
The paper said the neighbour was inside their own flat when they recorded the alleged altercation.
It said that in the recording - heard by the Guardian, but not by the BBC - Mr Johnson could be heard refusing to leave the flat and telling the woman to "get off my laptop" before there was a loud crashing noise.
Ms Symonds is allegedly heard saying the MP had ruined a sofa with red wine: "You just don't care for anything because you're spoilt. You have no care for money or anything."