Greater Manchester Police confirmed that they had been called to the footballer's road in Worsley, Salford shortly after 3.20pm today.
A statement issued by the force said: "Officers attended and discovered at least six cars had been vandalised after a group of offenders arrived in a Ford Transit van and attacked the vehicles. Inquiries are continuing."
According to BBC News, reporters revealed that cars were kicked and covered in flour and eggs, while tyres were also slashed.
The Manchester United player has been under scrutiny after MP John Hemming claimed that Giggs was the footballer exposed on Twitter as having an injunction to prevent publication of an alleged affair with ex-Big Brother contestant Imogen Thomas.
The freedom of speech campaigner explained that it would not be practical to imprison the 75,000 Twitter users who had named the player on the social networking site.
> Twitter enjoys injunction traffic surge