An explosion was heard in Tehran early Saturday, according to state television.
BREAKING: Loud explosion heard in Tehran's Mellat Park. Emergency services on scene.
— Iran Military (@Iran_Military) July 9, 2021
No reports of injuries.#Iran
The explosion occurred in Mellat, or People, Park in the northern area of the capital, it said.
It is believed to have been caused by sound bombs and no casualties have been reported.
Tehran Deputy Governor Hamid Reza Goudarzi, who was at the site of the boom, said an investigation is underway to determine the exact cause of the explosion.
This article has been adapted from its original source.

