The mother and brother of Mariam Makhniashvili, the 18-year-old girl who went missing more than two months ago, held up placards and handed out flyers at Yonge-Dundas square Saturday.

About a dozen people attended the gathering, dubbed the March for Mariam, which was organized in the hope of learning anything more about the teenager's disappearance.

James Palson organized the event on the popular social networking website Facebook. He said his heart goes out to Mariam's family.

Mariam was last seen on Sept. 14 after walking to school with her 16-year-old brother George.

Police have conducted extensive searches from the air and the ground as part of their investigation. They said there's no evidence to suggest foul play in her disappearance.

The only evidence they have located is Mariam's backpack, which was discovered last month near Yonge and Eglinton.

This week, police conducted face-to-face interviews with students at Mariam's school, Forest Hill Collegiate. But they said they received no new leads in the case.

"The story remains a mystery on her whereabouts," Tony Vella, a Toronto Police Service spokesperson, told ctvtoronto.ca on Friday.

A police search has also wound down at the Ingram transfer station, where garbage from the Bathurst Street and Eglinton Avenue West neighbourhood is taken, Vella said.

Mariam's family lives just north of that intersection.

Mariam is white, 5'3" with light brown, shoulder-length hair and brown eyes. She was last seen wearing black jeans with front and back pockets and buttons as well as a baby blue, long-sleeved V-neck shirt. She was wearing a waist-length blue jean jacket.

Anyone with information is asked to call Toronto police at 416-808-5300, or to call Crime Stoppers at 416-222-8477. Members of the public can also send in tips online at www.222tips.com, or they can text TOR and a message to CRIMES (274637).