Videos filmed across Iran show large-scale explosions occurring in several cities as regional conflict continues for a fourth day.
The United States and Israel attacked Iran on Saturday, killing Supreme Leader Ayatollah Ali Khamenei.
Footage shared on social media, seen by the BBC and news agencies, shows multiple explosions and destruction across the country over the past few days.
The United States also shared a video showing military targets being hit.
Iran responded with attacks across the region.
