Iran International audience reported explosions and smoke around Azimieh, near Karaj, following an Israeli strike.
Another message said drones were targeting air defense systems atop the surrounding mountains.
After the Israeli military warned of large-scale attacks on Tehran, reports emerged of blasts in various neighborhoods of the capital, including Shahrak-e Gharb, Saadatabad, Punak, Ekbatan, and Chitgar.
Residents across Tehran and Karaj described hearing multiple explosions and seeing air defense fire in the skies.
