“There can not be another massacre of peaceful protesters, nor an internet shutdown. The world is watching,” Trump wrote.
Thousands of anti-government protesters gathered on Saturday outside the gates of Amir Kabir University, near the former US embassy in Tehran, to denounce the plane crash the government had blamed on human error and “US adventurism.”
In a video posted on social media, protesters chanted for Supreme Leader Ayatollah Ali Khamenei to step down and for those responsible for downing the plane to be prosecuted. “Death to the dictator,” some chanted. In one video, demonstrators chanted, “Khamenei have shame. Leave the country.”
“We stand with the Iranian people who deserve a better future,” Pompeo continued.
This story has been updated with additional comment from the President Sunday.
CNN’s Madeline Holcombe, Artemis Moshtaghian and Ray Sanchez contributed to this report.