MILWAUKEE, Wis. (CBS 58) -- The Milwaukee police department is asking for the public's help in locating a critically missing 13-year-old.

Police say Nasir Brown's family hasn't seen him since around 12:45 a.m., on March 26. He was last seen in the 800 block of West Somers Street in Milwaukee.

Nasir is described as being 5-foot-6 inches tall, weighing around 135 pounds, with brown hair, brown eyes, and a muscular build. 

Nasir was last seen wearing a black hooded sweatshirt and blue jeans. 

Anyone with any information is asked to call the Milwaukee Police Department District 5 at 414-935-7252.