Updated

NEW YORK (AP) — Prosecutors have released a letter saying the Times Square bomb suspect waived his rights daily as he was questioned by investigators trying to identify associates and to prevent future attacks.

Faisal Shahzad was brought to court Tuesday for the first time to face five charges accusing him of driving an SUV rigged with a homemade bomb in Times Square on May 1.

He was arrested on May 3 at Kennedy Airport as he was about to leave the country.

The letter from prosecutors was sent to a federal judge and a federal magistrate judge on May 12. It was partially redacted when it was released on Thursday.