It's been days since a south Edmonton man was last seen and police said Thursday his disappearance is suspicious.

Family and friends of Alex Thomas-Haug, 24, have organized a search party to look for the young man, last seen early Monday morning near his home at 95 Street and 73 Avenue.

A friend had dropped him off at home at about 4 a.m. – his mother, Lorna Thomas, told CTV News her son must have realized he didn't have his house keys, which he had left at a friend's house – located on the other side of Mill Creek Ravine.

"So we're not sure, but the logic is he would have made his way through the ravine to his friend's house to retrieve his keys," Thomas said.

Several people formed a search party Wednesday, and spread out in the area near his house to look for any sign of Thomas-Haug, put up posters, and spread the word.

"We're in the process of trying to put these [posters] up in some prominent locations, in an effort to try to get more people keeping an eye out for him," Thomas continued.

Family members said this is out of character for the young man.

Police say they've completed door-to-door interviews in the surrounding area and are expected to make a second sweep of the ravine.

Police are calling the lack of any activity on Thomas-Haug's phone, bank and social media accounts "out of character and suspicious."

Thomas-Haug is described as 183 cm (6') tall with red hair, and was last seen wearing black pants, a black t-shirt, a hoodie and a black cap.

Anyone with information about Thomas-Haug's disappearance is being asked to call Police at 780-423-3456 or Crime Stoppers at 1-800-222-8477.