There is still no sign of a first-year Carleton University student who's been missing for nearly three weeks.

More than 100 people gathered at Carleton University early Friday morning to join the search for 18-year-old Nadia Kajouji.

The group fanned out across campus looking for any traces she could have left behind.

The search began at midnight and included a close look along the banks of the Rideau River.

A small group of people also searched the O-train tracks with a transit official near Dow's lake Friday morning.

Both searches were unable to locate any sign of the missing student.

Kajouji was last seen leaving her dorm room in Ottawa after spending her university reading week with family in Brampton, Ont.

Police have searched the water and brush surrounding Carleton University in the weeks following Kajouji's disappearance.

Her family says they are still clinging to hope their daughter will be found alive.

Kajouji's father, however, told CTV News earlier this week he was concerned his daughter may have harmed herself.

Kajouji is described as having dark skin and shoulder-length brown hair with blonde streaks. She is 5'8 and 130 pounds. Her eyebrow and tongue are pierced.

Anyone who has any information on Kajouji's whereabouts is asked to contact Ottawa police at 613-236-1222, ext. 3726.