Shortly after midnight on Friday, police were called to an address in south London where Johnson is living with his girlfriend.
“The caller was concerned for the welfare of a female neighbor. Police attended and spoke to all occupants of the address, who were all safe and well,” the police said in a statement.
“There were no offences or concerns apparent to the officers and there was no cause for police action.”
A spokesman for Johnson did not immediately respond to a request for comment.