According to US website TMZ, the Hollywood actor was facing a probe by the Los Angeles Police Department and LA County Department of Children and Family Services over allegations he was physically and verbally abusive to his children.
The site alleged Brad, 52, was on a flight last Wednesday when he became drunk and "went wild, screaming and getting physical with the kids".
However, the LAPD have since DENIED they're investigating, and a spokesman reportedly told the Independent: “We only found out through calls this morning, we contacted divisions that would be handling it and they’ve said no."
Officer Jenny Houser told Fox News: "We are not investigating Brad Pitt for any sort of child abuse. No allegations have come to us within our jurisdiction that we're responsible [for]."
Sources close to the star told the site the actor did not commit any abuse and is taking the matter "very seriously".
The site claims Brad, Angelina and their kids landed at an airport at around 8pm, with unnamed witnesses claiming the World War Z actor continued ranting on the tarmac and tried to leave in one of the fuel trucks.
Sources alleged the incident was reported to the LA County Department of Children and Family Services and both Brad and Angelina have been interviewed as part on an ongoing routine investigation into the reports.