MILWAUKEE (CBS 58) -- Milwaukee police are asking for the public's help in locating a critically missing man. 

Officials say 74-year-old William Lau was last seen around 6:30 a.m. Thursday, May 15, near Cramer and Kenwood Boulevard. 

He's described as a white male, 5'10", 140 pounds, with gray hair, blue eyes, and glasses. 

William was last seen wearing a lime green jacket with black sleeves, black pants, and gray and white shoes. 

Police say he was walking in an unknown direction. 

Anyone with information is asked to contact MPD District 1 at 414-935-7212.