Iran, Iraq, Russia and Syria developed the Quadripartite Information Exchange Center to battle ISIS in 2015 and Tehran argues it's still needed today amid tensions between Baghdad and Washington.
Iran has tested new naval missiles and boosted its fleet of fast attack craft in a challenge to the U.S. military presence in the Persian Gulf and surrounding waters.
The chants came at the behest of lawmaker Ahmad Naderi, who asked those in attendance "to show respect for the movement of the oppressed in the U.S." with their slogan.
The U.S. is taking flak worldwide for racism in light of the latest black lives matter protests. But some of that criticism is coming from states that oppress minorities.
He offered a scathing rebuke Saturday of Chinese government officials and their country's state-run media outlets for producing "obscene propaganda" that looks to capitalize on U.S. civil unrest.
The president withdrew the U.S. from the Iran nuclear agreement in 2018 and has urged other signatories to do the same, but said Thursday he still wants to make a new deal.
Michael White, a former U.S. Navy service member, was reportedly released from Iranian custody days after Iranian scientist Sirous Asgari was deported to his home country.
The Iranian president condemned President Trump's handling of the crisis, even though the regime in Tehran killed hundreds of people when suppressing anti-government demonstrations last year.
Nationwide demonstrations after the death of George Floyd have drawn criticism from China, Russia, Iran, North Korea and other countries that are using the unrest to discredit the United States on the world stage.
Officials from Tehran and Caracas hailed solidarity between the two nations as Iranian tankers defied U.S.-imposed restrictions to carry fuel to Venezuela.
"The end of Ramadan brings us the arrival of the Fortune ship, a sign of the solidarity of the Islamic people of Iran with Venezuela," Venezuela leader Nicolás Maduro tweeted on Sunday.