17-year-old dead, one missing after teens fall through the ice on the Rideau River in Ottawa

Ottawa police say one youth is dead and one person is missing after they fell through the ice on the Rideau River in Ottawa's south end on Wednesday. Two other teens were treated for mild hypothermia.

Ottawa police say one youth is dead and the search continues for a second after they fell through the ice on the Rideau River in Ottawa's south end.

Emergency crews responded to a call at 9:45 p.m. Wednesday for four youth who had fallen through the ice along Nicolls Island Road near Manotick.

Police say two youths were rescued by first responders and transported to hospital. A 15-year-old girl and a 17-year-old boy were treated for mild hypothermia, according to paramedics.

"Two more youths – 16-year-old and 17-year-old males – were still missing and believed to be in the water," Ottawa police said in a statement Thursday morning.

"A rescue operation including a surface and water search in very difficult conditions continued through the night."

Police say officers with the Marine Unit and the Ottawa Fire Water Rescue Unit searched the area overnight.

The body of one of the missing youths was recovered, police said.