In this photo taken Monday, March 9, 2015, a B-1 bomber is seen at the al-Udeid Air Base in Doha, Qatar.

Air strikes by a U.S.-led coalition against the Islamic State of Iraq and Syria (ISIS) group in northeastern Syria have killed around 170 militants in the past 48 hours, a monitoring group said Tuesday.

“The jihadists were killed in the past 48 hours in the province of Hasakeh, nearly all of them in very intense air strikes by the international coalition which is helping Kurdish forces in the area,” said the Syrian Observatory for Human Rights.

In its latest update on the coalition’s operations, the U.S. military said in a statement that the alliance’s warplanes carried out seven strikes near Hasakeh.

They struck four ISIS tactical units, destroying seven vehicles, three fighting positions, two armored vehicles and a shipping container.

“In northern Syria, Daesh [ISIS] continues to cede military capacity, fighters and terrain,” US Brigadier General Thomas Weidley said, using the Arabic acronym for ISIS.

“The coalition remains committed to targeting Daesh across Iraq and Syria,” he was quoted as saying in the statement.

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