U.S. and coalition forces over the past week conducted airstrikes in Iraq, including killing Islamic State fighters hiding in a cave and capturing a cell leader in Syria, officials said Monday. 

The strikes occurred in the Hamrin mountains in northeast Iraq from Dec. 30 through Monday, targeting ISIS locations, U.S. Central Command said. 

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"Partnered operations like these are critical to maintaining pressure on ISIS and preventing the terrorist group from taking advantage of the rapidly changing security environment in the region," said CENTCOM Commander Gen. Michael Erik Kurilla. 

"The enduring defeat of ISIS is a global effort that relies on our Coalition, allies, and partners. U.S. Central Command remains committed to aggressively pursuing these terrorists that threaten the region, our allies, and our citizens," he added. 

In a statement, CENTCOM said the strikes were conducted in an effort to disrupt the terror group's ability to organize and attack civilians, as well as U.S. citizens and allies in the region. 

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"During the operations, ISIS fighters engaged Coalition forces on several occasions, resulting in the employment of Coalition air strikes," CENTCOM said. 

At one point, the jets were used to take out ISIS fighters hiding in a cave, officials said. 

One coalition member was killed and two others from different nations were wounded. No U.S. personnel were injured, and no damage to any U.S. equipment was reported. 

In addition, from Jan. 2-3, the U.S.-backed Syrian Democratic Forces (SDF), enabled by CENTCOM forces, captured an ISIS cell leader during an operation near Deir ez-Zor, Syria.

An Indiana Army National Guard soldier died in a "non-combat related incident" in Iraq just days after Christmas, the National Guard confirmed to Fox News.

The National Guard said Capt. Eric Richard Hart, 34, of Indianapolis, Indiana, died on December 28 while supporting Operation Inherent Resolve in the Middle East.

The National Guard did not reveal what led to Hart's death, only saying the incident is under investigation. 

Hart was assigned to Headquarters & Headquarters Battalion, 38th Infantry Division, Indiana National Guard, according to the National Guard.

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Hart served with the Indiana National Guard for 11 years, earning the Meritorious Service Medal, Army Commendation Medal, Army Achievement Medal, Army Reserve Component Achievement Medal, among many others.

He commissioned as second lieutenant in 2015 from the Officer Candidate School at Camp Atterbury.

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In a statement to Fox News Digital, the Indiana National Guard called Hart an "integral part of our team," writing "he will be missed." 

"The Indiana National Guard extends our heartfelt and sincerest condolences to the family and friends of Capt. Eric Hart who died in a noncombat incident while overseas serving with the 38th Infantry Division in support of Operation Inherent Resolve," the statement read. "Our thoughts are with them and the soldiers who worked and served alongside Capt. Hart."

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Fox News Digital reached out to the Department of Defense for comment, but did not immediately receive a response. 

The U.S. announced plans to shrink the U.S. "footprint" in Iraq and end the current mission of coalition forces — including the Kurds — to fight ISIS, but declined to say how many of the 2,500 troops currently stationed there would remain. 

The current mission is now set to end by September 2025, with a plan to keep the number of forces on the Iraqi side to back up the 900 U.S. troops in Syria until at least 2026. 

Fox News Digital's Morgan Phillips contributed to this report.