TORONTO - Police say they have no new leads after interviewing almost all of the students at the high school attended by a missing 18-year-old Toronto girl.

All but four students at Forest Hill Collegiate had been interviewed by Friday afternoon as police investigate the disappearance of Mariam Maknihashvili.

The girl was last seen Sept. 14 outside the school but most students have said they never spoke to her.

The only solid clue so far in the case is Mariam's backpack, which was discovered with some school books in a parking lot on Oct. 8.

Police have also been conducting a canvass of the area, asking that people let them inside for a quick look around.

On Oct. 27, police seized several computers from two libraries to examine who the girl contacted and what websites she visited.

"The interviews are nearly completed. No new developments in the investigation," said Const. Tony Vella.

"The story remains a mystery on her whereabouts."

Mariam's parents have said it's unlikely she ran away since she left home with no money, no passport and no extra clothes.

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