Iran’s air defense force has confirmed Israeli attack against positions in three Iranian cities of Tehran, Ilam and Khouzestan saying that the defense forces successfully thwarted the attack.

“Despite the previous warnings of the officials of the Islamic Republic to the criminal and illegal Zionist regime to avoid any adventurous action, this fake regime attacked parts of military centers in the provinces of Tehran, Khuzestan and Ilam this morning in a tension-causing action,” the air defense force said in a statement on Saturday morning.

The country's integrated air defense system successfully intercepted and countered the act of aggression, it said.

The attacks caused limited damage in some locations and the dimensions of the incident are under investigation, the statement added.

Earlier, security sources said the loud sounds heard by some people in the vicinity of Tehran were due to the activation of air defense systems.

Iran’s official IRNA news agency cited a security source as saying on Saturday morning some of the sounds heard in the capital were caused by “defense activity in Tehran.”

The news agency said there were no reports of incidents that required assistance and that the situation at Mehrabad International Airport and the Imam Khomeini International Airport was “normal.”

IRNA said Iranian air defenses “successfully shot down adversarial targets in the airspace around Tehran province.”

Footage shared online captured what appeared to be interceptions over the Iranian capital.

Tasnim News Agency reported on Saturday morning that the situation was normal at Imam Khomeini International Airport and Mehrabad Airport.

No missile strike or impact occurred on Islamic Revolution Guards Corps (IRGC) military centers in the west and southwest of Tehran, the agency reported.

According to information obtained by the news agency, there has been no impact on IRGC military centers in the west or southwest of Tehran.

The sounds heard are related to the army’s air defenses engaging Israeli military actions in three areas around Tehran.

Informed sources told Tasnim that Iran is ready to respond to Israeli aggression, "as previously stated."

"Iran reserves its right to respond to any form of aggression, and there is no doubt that Israel will receive a proportional reaction to any action taken."