The female claims the R&B star pulled out the firearm after an argument early on Tuesday morning (30Aug16), while they were both staying at a property in Los Angeles, reports TMZ.com.

She called police, who responded and took down an incident report.

Sources tell the website Chris is the only current suspect in the ongoing investigation.

It's not the first time the singer has been involved in a domestic dispute - he was infamously convicted of felony assault in 2009 after violently attacking then-girlfriend Rihanna.

He received five years probation, which finally ended in 2015 after a number of violations for drugs and altercations prompted officials to extend the sentence.