TAMPA, Fla. -- The American-led coalition says other air strikes were conducted on the same day and in the same vicinity where Canadian CF-18 warplanes were accused of causing civilian casualties in January.

A spokesman for the U.S. Central Command, which oversees the war against the Islamic State in Iraq and the Levant, confirms the Canadian military was advised of the allegation involving attacks that took place near Mosul on Jan. 21.

Lt.-Cmdr. Kyle Raines wouldn't say which other countries carried out missions at the same time in the vicinity of Iraq's second largest city, which has been occupied by Islamic State fighters since the summer of 2014.

But he did confirm Canadians were notified of a coalition investigation.

He also said the investigation involving the CF-18s was wrapped up with no evidence to support the claim of civilian casualties.

However, Raines says the investigation could be reopened if new information comes to light.