The protests started when Iranian college students gathered for a vigil, but the mood changed to anger.

Zoom out: The growing anger surrounding the crash comes just weeks after the Iranian government reportedly killed citizens in an attempt to squash national protests, The Telegraph writes. Iran is facing pressure from both world leaders and people at home over the fatal crash.
The big picture: “The death of graduates from top universities migrating to Canada on the Ukrainian light has struck a nerve with protesters. Many protesters feel their future is ruined in a country facing high unemployment,” CNN notes.
What he’s saying: President Trump tweeted on Saturday, “To the brave and suffering Iranian people: I have stood with you since the beginning of my presidency and my government will continue to stand with you. We are following your protests closely. Your courage is inspiring.”
Go deeper: What we know: Ukrainian Boeing 737 crashes in Tehran
Editor’s note: This article has been updated with details on the latest protests.