Within 45 minutes, three protests were held in the city aimed at Iran's President Mahmoud Ahmadinejad's presence at the United Nations conference on nuclear nonproliferation treaty.

At the first protest Monday, supporters rallied at 10 a.m. to urge Ahmadinejad to free hikers detained in the country since July 31, 2009.

In the second protest, the group "Where Is My Vote" gathered at dag Hammarskjold Plaza and complained of Iran's human right record.

By 10:45 a.m., the third event involved U.S. Sen. Kirsten Gillibrand, U.S. Reps. Joe Crowley, Carolyn Maloney, Jerrold Nadler and Anthony Weiner, City Comptroller John Liu and Jewish religious leaders criticized participation of Iranian officials in the U.N. Conference.

Sen. Gillibrand also called for Senate hearings to investigate companies doing business with Iran. In addition she urged passage of tough sanctions targeting Iran's oil and gas economy to force companies around the world to make a choice on whether they will deal with Iran or with the rest of the world.

"There are no other words to say it: Iran's presence at this conference is a sham," said Sen. Gillibrand.

Recent reports have found that 74 companies are doing business with both Iran and America's government. Thy state that $100 billion in contracts and grants have been awarded by the United States to companies in business with Iran, including $15 billion to companies in violation of current sanction law.