For a moment Tehran resembled a city at peace, with birdsong, joggers and tranquil views of the snow-capped Alborz mountains in the distance. Then the sound of another explosion ripped through the air. 

A week ago, opening strikes by the US and Israel killed Iran's supreme leader Ayatollah Ali Khamenei, upended residents' lives and transformed the city streets into a battleground.

Originally published on doc.afp.com, part of the BLOX Digital Content Exchange.