The lorry driver whose car crashed with the bridge and caused its collapse is now under arrest, according to the prosecutor of Pakdasht.
The rare incident took place on Saturday night, and temporarily blocked the road connecting Pakdasht to Tehran.
Two people were killed and three others injured when a pedestrian bridge in Pakdasht, south of the Iranian capital, fell down after being hit by a lorry.
The lorry driver whose car crashed with the bridge and caused its collapse is now under arrest, according to the prosecutor of Pakdasht.
The rare incident took place on Saturday night, and temporarily blocked the road connecting Pakdasht to Tehran.