Aircraft parts from the wreckage of a Boeing Co. 737-800 aircraft, operated by Ukraine International Airlines, which crashed shortly after takeoff lie on the ground near Shahedshahr, Iran, on Wednesday, Jan. 8, 2020.

Iran's judiciary has arrested around 30 protesters who took to the streets after authorities admitted that a Ukrainian plane that crashed outside Tehran was accidentally hit by an Iranian missile, a spokesman said on Tuesday.

"Around 30 people have been arrested for taking part in illegal gatherings ... We have tolerance towards legal rallies," said Gholamhossein Esmaili, the semi-official Tasnim news agency reported.