Iranian lawmakers on Sunday reportedly chanted "death to America" during a session of parliament.

The chants came after a speaker called the U.S. the “real world terrorist,” according to Reuters.

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"America is the real terrorist in the world by spreading chaos in countries, giving advanced weapons to terrorist groups, causing insecurity, and still it says ‘Come, let’s negotiate’,” said Masoud Pezeshkian, the deputy speaker of the Iranian parliament, according to the wire service.

Lawmakers responded to his comment by chanting "death to America," the news outlet reported.

The chants come amid increased tensions between Washington and Tehran. Iran last week shot down an unmanned U.S. drone. President Trump Donald John TrumpSteele Dossier sub-source was subject of FBI counterintelligence probe Pelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Trump 'no longer angry' at Romney because of Supreme Court stance MORE tweeted last week that he called off a military strike over concerns about casualty numbers. He later added that he "stopped it from going forward at this time."

He also announced new sanctions on the country. The U.S. Cyber Command has reportedly attacked the country's military computer systems.