State-owned Mehr News initially reported:

Explosion sounds heard around Qeshm Island and Sirik, Hormozgan Province. Initial reports suggest a conflict near Strait of Hormuz. No official confirmation authorities on nature of explosions.

IRGC-owned Fars News later stated:

The sounds heard are related to warning shots fired at vessels violating regulations in the Strait of Hormuz.

The reported events occurred in Hormozgan Province, Iran.