Rob Kardashian Gunning For Full Custody Of Dream After Blac Chyna's Hawaiian Brawl

Rob Kardashian is going after full custody of daughter Dream following baby mama Blac Chyna's violent fight with her new boyfriend in Hawaii on Monday, January 28, RadarOnline.com can exclusively report.

According to a Keeping Up with the Kardashians source, when word of Chyna's brawl got back to Kardashian, 31, — who blasted his 30-year-old ex for going on vacation without their daughter earlier that day — he "freaked the f**k out!"

And as per usual, Kardashian's momager Kris Jenner quickly got involved.

"Kris immediately sprang into action and called their lawyer to demand that Rob be granted full custody of Dream," the source said. "She thinks Chyna should get supervised visitation, if that, for now."

According to reports, cops and paramedics were called to the Ritz Carlton in Honolulu in the early morning hours on Monday. Although Chyna and her new man Kid Buu were not arrested, police claimed they started arguing and engaged in a "physical altercation."

Just one week prior, RadarOnline.com confirmed cops rushed to Chyna's home after a 911 caller reported she was neglecting her daughter Dream while intoxicated. (Cops did not charge the mom of two with any crime.)

In November, Chyna was caught on video in an apparent attack on a fan in Nigeria. Earlier in 2018, the star was captured on tape at a California Six Flags lashing out on a fan for allegedly "touching" Dream.

The source told RadarOnline.com that Jenner and Kardashian plan to use all of the past incidents in their fight for custody.

"They are using her erratic behavior as well as rumored substance abuse issues as ammo," the source explained. "The whole family just feels that Dream is not safe. It is just an awful situation."

Meanwhile, RadarOnline.com previously reported that Chyna believes her ex is simply launching a "bad mom" smear campaign against her.