As the air strikes against Islamic State continue, the financial attack against the jihadist organisation is being stepped up.
Speaking at the White House earlier, David Cohen from the treasury department said ISIS was amongst the best financed terrorist organisations that the US has confronted.
It makes around $1 million a day from oil sales, as well as receiving money from kidnapping and other sources.
Mr Cohen told reporters that clamping down on the revenue streams would leave the terrorist group unable to fund its expansion.
in: "A terrorist organisations financial strength..."
out:"...expense side of its balance sheet."
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White House spokesman Josh Earnest has said that President Obama condemned the attack in Ottawa, and that the United States would provide any assistance needed.
in: "Canada is one of our closest allies..."
out: "...to combat this serious threat."
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