Protesters angry over Iran's ailing economy conducted a sit-in Tuesday at Tehran's Grand Bazaar, witnesses said, with security forces ultimately firing tear gas and dispersing demonstrators as the rest of the market shut down.

Iran’s Grand Bazaar closed amid sit-ins and clashes with security forces as nationwide protests intensified, the rial plunged to a historic low, and authorities reported dozens killed and mass arrests

The protest at the Grand Bazaar, the beating heart for centuries of both Iran's economic and political life, represented the latest signal that the demonstrations likely are to continue as the country's rial currency fell to a record low Tuesday.

At least 36 people have reportedly been killed in Iran amid anti-government protests across the nation, putting its rulers under pressure as Trump threatens to intervene.

Iran's rial hits historic low of 144,000 tomans, triggering nationwide strikes in the Grand Bazaar and 10 universities. First fatality confirmed in Kuhdasht as protesters chant 'Don't be afraid.'