"It has been observed that helicopters of the US army were flying a short distance from the Iran-Iraq border. There is the danger of a violation of Iran's airspace because of proximity to the border," said the Headquarters of Iran's Armed Forces in a statement on Wednesday.
"Iran's armed forces will forcefully respond to any attempts to violate the Islamic Republic of Iran's airspace," it added, press tv reported.
The statement comes after US forces attacked Syria last month, a move that was condemned by Damascus and Tehran.
US commandoes on board four helicopters attacked the Syrian border region of Sukkariyeh, some eight kilometers inside the country on October 26. The commandoes opened fire on a group of people, killing at least eight and injuring another 14 people.
Iranian President Mahmoud Ahmadinejad has vehemently blasted the US attack on Syria, calling it a "barbaric act; a great blunder".
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