NEW ORLEANS - A magistrate has ordered that millionaire Robert Durst be held without bond on weapons charges in Louisiana.

Magistrate Harry Cantrell said that based on what he heard in Monday's bond hearing and on court documents, the 71-year-old Durst is both a flight risk and a danger to others.

Durst was seated beside his lawyers, his hands shackled to his sides in padded cuffs. He has been in a prison's mental health unit for nearly a week. Officials have called him a suicide risk.

He's accused of killing a female friend in California 15 years ago, but his lawyers say his arrest was illegal and orchestrated to coincide with an HBO series about his links to three killings.

He was arrested March 14 at a New Orleans hotel on both the weapons charges and on the Los Angeles County warrant accusing him of murder.