NEW YORK (PIX11) --- A Brooklyn family is searching for their 31-year-old son who suffers from bipolar disorder, according to police.

Ian Freiman was last seen at a SummerStage concert in Central Park near East 69th Street at 8 p.m. Wednesday, according to the NYPD. He was wearing a long-sleeved blue sweater, long dark pants, and glasses, according to a flyer from the family.

"We have not seen or heard from him since," the flyer said.

Freiman's mother reported him missing on Thursday. Police confirmed Friday that the man was still missing.

Anyone with information is asked to contact the family at 914-772-4775.

Submit tips to police by calling Crime Stoppers at 1-800-577-TIPS (8477), visiting crimestoppers.nypdonline.org, downloading the NYPD Crime Stoppers mobile app, or texting 27463

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