NORTH LITTLE ROCK, Ark. (KTHV) -- The North Little Rock Police Department has requested the activation of a Silver Alert for a missing man with dementia.

Donald “Mack” Smith, 66, was last known to be in the 900 block of West 50th Street in North Little Rock on Wednesday around 8 p.m.

Smith is described as 5’9” and 145 pounds with green eyes and balding/grey hair.

He was last seen wearing a black shirt and tan and black flannel pants. Police say he may be driving a white 2006 Toyota Corolla with Arkansas LPN 846 STM.

Anyone having information should contact the North Little Rock Police Department at (501) 758-1234.