Iran has recently arrested a Lebanese-American citizen on suspicion ofespionage, reports say.
The IRIB news agency quoted informed sources on Tuesday as saying that Nazar Zaka had "deep ties" with the US military and intelligence services.
The report did not give any details on when or wherethe suspect had been arrested.
The report added that Zakas photographs show him in military uniform in a US base in the Riverside county, California.
Some sources labelZaka as "a hidden treasure trove" owing to his connections with intelligence and military bodies in the United States.
Arrest of US, UK agents
Iran's Islamic Revolution Guards Corps (IRGC) also arrested members of an infiltration network affiliated with the US and British governments.
The IRGC intelligence branch recently arrested a number of Iranian journalists who had been collaborating with hostile Western governments, the IRIB reported.
They were nabbed following months of close monitoring of their activities by the IRGC intelligence.