by Breaking Celebrity News Staff

Media mogul Rupert Murdoch created a TomKat divorce side controversy when he Tweeted a missile against "creepy" Scientologists and while many explanations have been offered for the abrupt attack, a source close to the situation tells Breaking Celebrity News it's simple: Rupert and wife Wendi are closer than close with fellow Aussie Nicole Kidman and her hubby Keith Urban.

Just two days after news broke of Cruise and Holmes' separation, Murdoch Tweeted:  “Scientology back in news. Very weird cult, but big, big money involved with Tom Cruise either No. 2 or 3 in hierarch.”

He later Tweeted:  “Watch Katie Holmes and Scientology story develop. Something creepy, maybe even evil, about these people.”

"Rupert and his wife Wendi are best friends with Nicole and Keith," a source close to the situation told Breaking Celebrity News. "They are always together when Nicole and Keith are in New York."

Some might consider the Tweet a favor to a pal, the source added.

Wendi's friendship with Nicole is close and has been well documented. The couple's friendship bond is even closer than anyone knew, the source adds.