TEHRAN — Iranian lawmakers said Sunday that the country’s intelligence minister should be questioned in Parliament after newly installed wiretapping equipment was discovered in a legislator’s Tehran office, local news media reported.

Ali Motahari, a member of Parliament, revealed the discovery on Thursday on his personal Web site, Alimotahari.ir. His Web site was initially blocked after he posted the item, but it was accessible again on Sunday. Government insiders say that Mr. Motahari is a top candidate to become minister of culture and Islamic guidance in the cabinet of President-elect Hassan Rowhani.

In a reconstruction of events posted on his Web site, Mr. Motahari described how his office manager discovered fresh paint on the walls of his office on Tuesday. After a brief inspection, a security camera and microphones were found behind the air-conditioner. Images retrieved from the camera showed nine men installing wiretapping equipment in the room, Mr. Motahari wrote. He also wrote that the building supervisor and a shop owner across the street were intimidated into cooperating.

“When such an event happens to a famous member of Parliament, one can only image how much the ordinary people are being oppressed,” Mr. Motahari wrote.