Iran's state television is reporting that a senior lawmaker has warned Russia over a delay in the delivery of an anti-aircraft missile defense system to Tehran.

Sunday's report quotes the head of parliament's national security and foreign policy committee, Alaeddin Boroujerdi, as saying that if Russia does not fulfill its promised delivery of the missiles, it will be "a negative point" in their relations.

Russia and Iran have been discussing the delivery of the S-300 anti-aircraft missile defense system based on a 2007 agreement.

Israel and the U.S., however, strongly oppose the agreement, saying the missiles would improve Iran's air defense capability.