Some 90 tonnes of food was sent to Doha, Iran Air spokesman Shahrokh Noushabadi said.
"So far five planes carrying perishable food data-x-items such as fruit and vegetables have been sent to Qatar, each carrying around 90 tonnes of cargo, while another plane will be sent today,” Noushabadi said.
"We will continue deliveries as long as there is demand" from Qatar, Noushabadi added, without mentioning if these deliveries were exports or aid.
Three ships loaded with 350 tonnes of food were also set to leave an Iranian port for Qatar, the Tasnim news agency quoted a local official as saying.
The port of Dayyer is Iran's closest port to Qatar.