Updated

Iran's intelligence minister says authorities have arrested an Iranian that he says was working for the CIA.

Heidar Moslehi told state TV Thursday that the person had links with the U.S. spy agency and allegedly set up a network of aides to gather information during anti-government protests last week.

He did not identify the alleged CIA agent but said the person was arrested Feb. 14 after a period of surveillance.

On that day, Iran's opposition staged its biggest protest rally in more than a year, and two people were killed in clashes between protesters and police.

Iranian authorities occasionally announce the arrest of people with alleged ties to foreign intelligence agencies, particularly those of the U.S., Britain and Israel.