Britney Spears' father investigates for alleged assault on his grandson

Kevin Federline claims Britney Spears"Father abused one of his grandchildren, which Kevin reported to the cops … and now, an investigation is underway.

Law enforcement officials told TMZ that the alleged incident occurred on August 24 at Jamie Spears& # 39; home in Ventura County. We are told that Federline claims that his 13-year-old son and Jamie had a fight, and at some point Jamie himself would have got his hands on it.

Our sources say that Jamie broke a door to reach his grandson and caught him once he was in the room. However, we were told that there were no blues or visible injuries to the child. Nevertheless, the incident was serious enough for Kevin that he reported it the next day to the Sheriff's Department of Ventura Co. We are told that investigators have already interviewed witnesses and submitted their findings to the D.A.

D.A. will decide to load Jamie.

As we reported for the first time, Britney and Kevin had just formalized a change of direction. child care agreement – He now has their 2 boys 70% of the time. We were told that it was their informal arrangement for a year now, but they filed documents to make it official with the court.