"OIR [Operation Inherent Resolve] is now at a high level of alert as we continue to closely monitor credible and possibly imminent threats to US forces in Iraq," Urban said in the statement on Tuesday.
Earlier in the day, the US-led coalition’s deputy commander, British Maj. Gen. Christopher Ghika, said in a press briefing that the threat level by Iranian-backed groups against coalition forces in Iraq and Syria has not risen.
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Previously, Pentagon increased its military presence in the Middle Eastern region amid growing tensions with Iran, sending an aircraft carrier strike group to the Persian Gulf.