Chris Brown arrest after standoff at his Los Angeles home

Celebrities: 27-year-old pop star Chris Brown has been arrested on suspicion of assault following a day-long standoff and search at his palace in the Tarzana neighbourhood in Los Angeles' San Fernando Valley after police got an emergency call in the early hours of Tuesday that he threatened a woman with a gun.

Before he was taken into custody, Brown denied any wrong doing in an Instagram post claiming he had woken up to find police outside his home.

Speaking to reporters at an impromptu media conference outside Brown's home, Lieutenant Chris Ramirez of the Los Angeles Police Department said;

"He is being transported to robbery homicide, where he will be arrested for assault with a deadly weapon."

But Ramirez refused to expand on the charges brought against Brown, saying an investigation was still under way.