TEHRAN, Oct. 1 (Xinhua) -- Iran's Islamic Revolution Guards Corps (IRGC) announced that it has targeted the terrorists' bases in Syria with surface-to-surface missiles on Monday morning.

"According to the immediate reports, a big number of the terrorists were killed or injured" in the attack which targeted an area in the east of the Euphrates in Syria, the IRGC website reported.

The missile attack came in response to the recent terror attack in the southwestern Iranian city of Ahvaz, in which at least 24 Iranians were killed and dozens were injured.