According to the Syrian Observatory for Human Rights, four people were killed in a rocket attack by Israel on the airport and a nearby military airport in Aleppo.
State news agency SANA had earlier said seven people were injured.
reported with reference to a military representative. The airport was out of commission after the attack. Some nearby locations were also hit.
According to the observatory, militias loyal to Iran control the area. The attack hit a militia weapons depot, according to the UK observatory. The wounded would be members of the militias. SANA reported that two civilians were among the victims.