Protests began Saturday at two universities in Iran, as Iranians gathered to mourn the 176 lives lost on Ukraine International Airlines Flight PS752, which the Iranian government admitted to accidentally shooting down early Saturday. That flight contained 82 Iranian citizens; Iran initially blamed its crashing on a technical error, calling US and Canadian claims that it had been shot down “lies.”

Angered over the Iranian government’s apparent attempt to hide the accidental killing of civilians, mourners in the crowd turned hostile, chanting anti-regime slogans and tearing up pictures of senior Iranian commander Qasem Soleimani, who was killed in a US airstrike on January 3.

Ahead of shooting down the plane, Iran responded to Soleimani’s death with missile strikes on US positions in Iraq; the government said “human error” led to military officials mistaking the aircraft for an enemy plane in the wake of those strikes.

At the protests, Iranians chanted “commander-in-chief resign,” referring to Supreme Leader Ayatollah Ali Khamenei, and “death to liars.” Some also chanted, “They are lying that our enemy is America, our enemy is right here.”