Update: Police reported at 6 p.m. on Tuesday that Edwin Phelps, the possibly suicidal Setauket man who went missing on Monday evening, has been found unharmed.

A missing Three Village man might be suicidal, and police are seeking the public’s help to find him.

The man, 34-year-old Setauket resident Edwin C. Phelps, had made suicidal statements to his girlfriend, according to the Suffolk County Police Department. She reported him missing at 7:45 p.m. on Monday and police issued a Silver Alert for him, under a county program that shares information with the public about missing people with special needs.

Phelps was described as Filipino, 5 feet 6 inches tall and weighing 175 pounds. He was last seen wearing gray jeans, a black collared polo shirt and a jacket with the design of the Filipino flag, which is blue, yellow and white. His car is a red 2002 Toyota Solara, a two-door sedan, with the New York license plate GLY 8402.

Police said Phelps, an Old Town Road resident, is bipolar and has been suicidal in the past.

Anyone who sees Phelps or his car is asked to call either 911 or detectives at 631-854-8652.