Iran weighed Sunday how to respond to reimposed United Nations sanctions over its atomic program, with one lawmaker suggesting parliament would consider potentially withdrawing from the Nuclear Nonproliferation Treaty.

The sanctions again freeze Iranian assets abroad, halt arms deals with Tehran and penalize any development of Iran’s ballistic missile program, among other measures.

Iran's parliament briefly denounced the sanctions before going into a closed-door session likely to discuss the country's response, which could include abandoning the Nuclear Nonproliferation Treaty and rushing for the bomb.

Parliament speaker Mohammad Bagher Qalibaf issued his own warning to those who would honor the U.N. sanctions as the chamber began meeting Sunday.

"If any country wants to take action against Iran based on these illegal resolutions, it will face serious reciprocal action from Iran,” Qalibaf told lawmakers.

Parliament soon after entered a closed session, without any formal announcement on what, if anything, was decided.

People worry about a new round of fighting between Iran and Israel, as well as potentially the United States, as missile sites struck during the 12-day war in June now appear to be being rebuilt.

Meanwhile, Iran's rial currency fell to a new record low of 1.1 million to $1, sending food prices even higher and making daily life that much more challenging.

AP video shot by Saeed Sarmadi