Windsor police are looking for a missing man who was last seen in March.
Dalton Bartnik, 27, has not been seen or heard from since.
Windsor police were in the area of Louis Street between Irvine Avenue on Sunday afternoon looking for Bartnik.
Police searched around the railroad tracks to canvas for video related to his disappearance.
Residents are asked to review camera footage from April 1 to May 20 for any suspicious activity.
Police said Bartnik is known to frequent downtown Windsor and Stratford.
He is described as white and 5'6" with a slim build. It is believed he was last seen wearing a grey oversized tracksuit, Jordan running shoes and a red baseball cap.
Anyone with information is asked to contact the Major Crimes Unit at 519-255-6700 ext. 4830.