Police believe a nightclub promoter was the ''mastermind'' of a raid on Chris Brown's home.

The 26-year-old singer's San Fernando Valley house was allegedly broken into early yesterday morning (15.07.15), and officers think the break-in was carried out by someone who knew the 'Loyal' hitmaker had just received $50,000 in cash for a club gig.

According to TMZ, the robbers demanded Chris' aunt - who was in the house at the time - show them where his safe was and let slip that they knew the sum of money was there.

It is said to be unusual for the star, who was not at home during the time of the robbery, to keep such a large amount of cash lying around, and only a handful of people knew about the cash, so police believe a promoter is a likely suspect.

It was previously revealed that the culprits - who held Chris' aunt at gunpoint before locking her in a closet - were known to the 'Yeah 3x' hitmaker and were aware he was at Hollywood nightspot Argyle at the time they struck.

The identity of the burglars is unknown as they were wearing ski masks at the time.

Meanwhile, Chris' former partner now fears their baby is no longer safe at his house following the incident.

Nia Guzman, who has 13-month-old daughter Royalty with the 'Forever' hitmaker, is reportedly deeply concerned about his ability to protect her.

A source close to the brunette beauty - who had a fling with the singer while he was still dating Karrueche Tran - claims she believes many of Chris' friends are in gangs and the robbery suggests they have now turned on him.