Iran has blocked all flights to and from Iraq's Kurdistan at the request of Baghdad, one day ahead of Kurdistan's independence referendum. (AFP Photo)

TEHRAN, Sept. 24 (Xinhua) -- Iran said Sunday it had blocked all flights to and from Iraq's Kurdistan at the request of Baghdad, one day ahead of Kurdistan's independence referendum, official news agency IRNA reported.

"At the request of the central government of Iraq, all flights from Iran to Sulaymaniyah and Erbil, as well as all flights through our airspace originating from the Kurdistan region, have been stopped," official news agency IRNA quoted the spokesman for the Supreme National Security Council, Keivan Khosravi, as saying.