TEHRAN, Iran — Hardline Iranian lawmakers called on Tuesday for the country’s opposition leaders to face trial and be put to death, a day after clashes between opposition protesters and security forces left one person dead and dozens injured.

Tens of thousands of people turned out for the opposition rally Monday in solidarity with Egypt’s popular revolt that toppled President Hosni Mubarak after nearly 30 years in power. The demonstration was the first major show of strength from Iran’s beleaguered opposition in more than a year.

At an open session of parliament Tuesday, pro-government legislators demanded opposition leaders Mir Hossein Mousavi, Mahdi Karroubi and former reformist President Mohammad Khatami face be held responsible for the protests.

Pumping their fists in the air, the lawmakers chanted “death to Mousavi, Karroubi and Khatami.”

“We believe the people have lost their patience and demand capital punishment” for the opposition leaders, 221 lawmakers said in a statement.

President Barack Obama on Tuesday slammed Iran for its harsh treatment of anti-government protesters and called on governments throughout the Middle East to avoid crackdowns on pro-democracy supporters.

“The world is changing,” Obama said in a message directed at autocratic rulers across the region. “You have a young, vibrant generation within the Middle East that is looking for greater opportunity. … You’ve got to get out ahead of change; you can’t be behind the curve.”

Obama was asked at a White House news conference about the mood of change sweeping the Middle East in sympathy with the opposition victory in Egypt.

“It’s ironic that the Iranian regime is pretending to celebrate what happened in Egypt,” Obama said. “They acted in direct contrast to what happened in Egypt” by using force against demonstrators.

Obama said that with advances in freedom of communication through smart phones and Twitter, it is more true than ever that governments must recognize that they must act with the consent of the people.

“Governments in that region are starting to understand this,” Obama said, “and my hope is that they can operate in a way that is responsive to this hunger for change, but always do so in a way that doesn’t lead to violence.”

Hardliners have long sought to put senior opposition figures on trial, but the calls for the death penalty signaled an escalation in their demands.

Iran has already tried scores of opposition figures and activists on charges of fomenting the mass protests following the country’s disputed 2009 presidential elections that saw Mahmoud Ahmadinejad win a second term. More than 80 of people were sentenced to prison terms ranging from six months to 15 years.

PHOTOS: IRAN PRO-DEMOCRACY PROTESTS

The opposition says scores were killed in the massive crackdown on those protests, while the government says only around 30 people died.

Following Monday’s opposition demonstrations, the first since December 2009, authorities vowed to move quickly to stifle the opposition before its gains momentum.

“The judiciary will quickly and resolutely deal with major elements and those who violated public order and peace,” the spokesman for Iran’s judiciary and state prosecutor, Gholam Hossein Mohseni Ejehi, told the official IRNA news agency.

The U.S. has voiced support for the demonstrators. Secretary of State Hillary Rodham Clinton said Monday the protesters “deserve to have the same rights that they saw being played out in Egypt and are part of their own birthright.”

Iran’s Foreign Ministry spokesman, Ramin Mehmanparast, on Tuesday rejected Clinton’s remarks, and accused the U.S. of “meddling” in Iranian affairs.

Also Tuesday, Iranian officials confirmed that one person was killed in the protests.

IRNA quoted the security chief for Iran’s Culture Ministry, Gholam Ali Zarei, as saying Sane Jaleh, a 26-year-old student at Tehran’s University of Art, was killed. He said Jaleh was a government supporter.

Acting police commander Gen. Ahmad Reza Radan told IRNA that one person injured in the clashes remains in critical condition. He also confirmed that several people were arrested, but did not specify how many.

Radan claimed that members of the opposition group MEK, or Mujahedeen Khalq, opened fire at police and protesters, IRNA said. He did not provide any evidence to back up his claim.

He also accused the U.S., Britain and Israel of stoking the protests — a common allegation from officials in Tehran following any unrest in Iran.