The Persian-language newspaper `Abrar' quoted Mousavi Khoeini as saying that the Ministry of Post, Telegraph and Telephone (PTT) has tracked down the source of the signals in an area controlled by the organization.

"The parliamentarians have currently decided not to reveal the name of the organization to the media for the fear that the issue might become political, and might thus frustrate the efforts to stop the matter," Abrar quoted the MP as saying.

"Still, if the organization refuses to stop the practice, and the efforts by the Parliament, the government and the Supreme National Security Council (SNSC) prove useless in that connection, that organization will be introduced to the media."

The Health Ministry and the Department of the Environment in separate reports had earlier voiced concerns over the activities of a certain organization in transmitting signals to block satellites broadcasts over Tehran, stressing that the signals are harmful to citizens as well as to the environment.

Accordingly, President Mohammad Khatami and Parliament Speaker Mehdi Karroubi in separate directives on Monday called for identifying and taking actions against those responsible for the efforts.

Mousavi Khoeini said no state institution can currently be certain about its radio activities considering that the signals transmitted by the organization might anytime interfere with those of the institutions.

He also added that the signals could disrupt the air navigation systems in the country.

Mousavi Khoeini further said Iran's Atomic Energy Organization as well as several other institutions have been assigned to assess the possible harm the signals could inflict on citizens.