In the early hours of Saturday, several explosions were heard in Tehran, the capital of Iran.

The details of the recent explosions have not been disclosed yet; however, some sources indicate that a portion of the drill took place near Tehran.

A senior American military official informed Al Jazeera that the United States is aware of the explosions in Iran and is monitoring the situation closely.

Despite the explosions, nothing about missile explosions or aerial bombardment has been reported so far.

Security sources in Tehran reported to IRIB that they are investigating the source of the sound blast. They indicated that some of these sounds were due to the air defense systems.

 Additionally, news sources report the presence of U.S. and Israeli fighter jets flying over Jordan, Iraq, and Syria.

Several explosions have been reported in Iraq and Syria, prompting the activation of the Syrian army's air defense.

The explosions have been reported in Syria’s capital Damascus, with Syrian air defenses continuing to intercept hostile targets, according to the state-run SANA news agency.

Lebanese news outlet Al Mayadeen also reports that its correspondent in Iraq has reported hearing explosions on the outskirts of Diyala and Salah Al-Din governorates.