The bodies of six people, including one child with a Canadian passport, were recovered from the St. Lawrence River near Akwesasne, Que., late Thursday afternoon, according to police in the community.
The first body was located around 5 p.m. ET in a marsh area near the U.S., border, the Akwesasne Mohawk Police Service said in a release. The Mohawk community straddles the Canada-U.S. border and occupies territory in Ontario, Quebec and New York state.
Police say the search has been called off for the night and is to resume Friday.
Akwesasne Mohawk Police Chief Shawn Dulude said he could not provide any information on the nationalities of the other five.
Police said they are waiting on the results of a post-mortem and toxicology tests to determine the cause of death.
They also said they will seek help from Quebec provincial police and the Ontario Provincial Police air support units.
Helicopter crew saw overturned boat
The Akwesasne Mohawk Police, with the assistance of the Canadian Coast Guard, is leading the investigation, Dulude said.
The bodies were spotted in Canadian waters by a Coast Guard helicopter, he said.
A search was launched earlier in the afternoon after the crew of a search and rescue helicopter saw an overturned boat in the water, a spokesperson for the Trenton Joint Rescue Coordination Centre said in an email.
The discovery of the bodies coincided with the search for a missing boater from the Akwesasne community that also began Thursday, Dulude said.
The family reported the boater missing after he was last seen launching into the St. Lawrence from Cornwall Island, which is directly south of Cornwall, Ont., on Wednesday night, around 9:40 p.m.