Canadian Forces jets bombed a warehouse used by Islamic militants in Iraq during an operation on Monday, Defence Minister Rob Nicholson says.

"Yesterday, as part of a larger coalition operation, four CF-18s struck an ISIL warehouse facility used for training and manufacturing improvised explosive devices," Nicholson said in a statement released on Tuesday, using one of the acronyms for the Islamic State in Iraq and Syria group, also known as ISIS.

Nicholson said the operation counters ISIS's immediate threat to the region and helps give Iraqi forces freedom to move.

"This strike is a demonstration of Canada's firm resolve to fight the heinous threat of terrorism that ISIL poses to millions of innocent people," he said. "Once again, I commend all those in uniform for their work, commitment and bravery as they continue to make meaningful contributions to this important mission."

The statement does not say where the attack took place, although most of the extremist staging facilities are located in the north of the country along the Syrian border.

The four CF-18s have been conducting missions under the umbrella of a U.S.-led, multi-national coalition.

With files from The Canadian Press