Meanwhile, in an emotional speech before parliament, the head of the Revolutionary Guard apologized for the shootdown and insisted it was a tragic mistake. "I have never been this embarrassed in my entire life. Iran must take full responsibility".
Videos sent to the New York-based Centre for Human Rights in Iran and later verified by The Associated Press showed a crowd of demonstrators fleeing as a tear gas canister landed among them. Other posts showed riot police hitting protesters with batons as people nearby shouted "Don't beat them!" Revolutionary Guard members patrolled the city on motorbikes, and civilian security forces were deployed. People looked down as they walked briskly past police, apparently trying not to draw attention to themselves.
Iranian public anger, rumbling for days as Iran repeatedly denied it was to blame for the plane crash, erupted into protests on Saturday when the military admitted its role.
Iran crashed the flight as it prepared for possible American retaliation after firing ballistic missiles at two bases in Iraq that housed U.S. forces on Wednesday.
On January 3, a U.S. drone strike in Iraq killed high-ranking Iranian military commander Qassem Soleimani, who Washington accused of plotting terrorist attacks. But no retaliation came.
Iranian Supreme Leader Ayatollah Ali Khamenei expressed his "deep sympathy" to the families of the 176 victims and called on the armed forces to "pursue probable shortcomings and guilt in the painful incident". "I feel ashamed when I think about their families".
Dozens of Iranians and Canadians, as well as nationals from Ukraine, the UK, Afghanistan and Sweden died on the plane. "The denial and covering up the truth over the past three days greatly added to the suffering and pain of the families, and me", said Zahra Razeghi, a Tehran resident.
"Police treated people who had gathered with patience and tolerance", Iranian media quoted Rahimi as saying.
"There are those who fully support a regime change in Tehran and hope this ongoing protest movement will turn into something bigger", he said.
Some Iranian artists, including famed director Masoud Kimiai, withdrew from an upcoming worldwide film festival.
U.S. President Donald Trump, who raised the stakes last week by ordering the killing of Iran's most powerful military commander, tweeted to Iran's leaders: "don't kill your protesters". "Thousands have already been killed or imprisoned by you, and the World is watching", Trump tweeted in a post that was also translated to Farsi.
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In the same hearing, Congress members questioned the Indian narrative of imposing a curfew citing "security" concerns. Diplomats from EU, Australia and Gulf were also expected to be part of the delegation but eventually dropped out.
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The airline began as Jersey European Airways in 1979, operating regional flights from Jersey. Flights operated as normal on Monday morning.
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Aguero now has 177 goals and is the most prolific non-Englishman in the history of the Premier League. He's a legend like Thierry Henry so it's nice to think Sergio was the one to break the record.
The most important to say is that if anyone blames the USA for the accident, they most definitely are not alone.
As the demonstrations continued on Saturday, the government moved to disperse the protesters. There cannot be another massacre of peaceful protesters, nor an internet shutdown. Amnesty International later said that more than 300 people were killed.
The Iranian people will probably demand accountability and the prosecution of those responsible for downing the plane, as well as the adoption of all the steps needed to ensure this does not happen again.
There were also protests on Sunday in Tehran in support of Soleimani, and opposing the United States and UK.
However, uniformed police officers were just one arm of Iran's security forces who were out in force for the demonstrations. The regime at the time acknowledged that at least 200,000 took part in the protests and 7,000 were arrested, marking possibly the largest demonstrations against the regime in its 40-year history.
Foreign Secretary Dominic Raab said Rob Macaire was detained after attending a vigil where he was paying respects to victims of the crash, some of whom were British.
Britain said its envoy was detained "without grounds or explanation" and in "flagrant violation of worldwide law".
It said that police "dispersed" them as they left the university and blocked streets, causing a traffic jam.
The Iranian State Department later invited the British ambassador to protest because of its "illegal and inappropriate presence", it said on its telegram channel.
On another Sunday talk show, national security advisor Robert O'Brien said the Iranian regime was "reeling from maximum pressure". They also asked for the ambassador to be expelled and the embassy to be closed.
'Iran is being choked off, and Iran is going to have no other choice but to come to the table'.