An Iranian fighter jet belonging to the organization crashed on Wednesday at an air base in the city of Shiraz owing to a “technical malfunction.” State media reported this citing the IRGC, according to a statement from the Islamic Revolutionary Guard Corps (IRGC).

According to a statement from the IRGC obtained by the semi-official Fars news agency, “a Sukhoi 22 aircraft belonging to the IRGC’s Aerospace Force experienced a mechanical breakdown during taking off at the Shiraz Air Base on Wednesday morning, and the pilots were forced to eject themselves from the jet.”

The pilot and co-pilot “are in perfect health due to their timely reaction,” the statement added.

Iran has a history of similar crashes among its faltering fleet.

In June, an Iranian Grumman F-14 Tomcat fighter jet crashed near the central city of Isfahan after its engine failed. In May, a fighter jet crashed in the central desert of Iran, killing both pilots. In February, a fighter jet plunged into a soccer field in the country’s northwestern city of Tabriz, killing both pilots and a civilian.

Iran’s air force has an assortment of US-made military aircraft purchased before the 1979 revolution and the Tomcat F-14 is American-made.

It also has Russian-made MiG and Sukhoi planes. Decades of Western sanctions have made it hard to obtain spare parts and maintain the aging aircraft.