Deputy head of Tehran’s security forces has told ILNA that “The president and the interior ministry have issued strict orders not to repeat unpleasant past behavior toward detainees.”
https://en.radiofarda.com/a/iran-protests-detainees/28949931.html
Video from Tehran appears to show security forces. "Don't beat up people," a woman is heard saying in the video.
Protesters in Tehran chanting: "Death to the dictator."
IRGC spokesman Ramezan Sharif says the situation in Iran is "under control." "There was no need for the IRGC to intervene," he said.
Moscow Considers Events In Iran As The Country's Internal Affairs
MOSCOW. Jan 1 (Interfax) - Moscow hopes that the situation in Iran,
where riots have taken place, would not develop under the scenario of
violence, the Russian Foreign Ministry said, stating that an external
interference with the situation is inadmissible.
"It is Iran's internal affair. We express hope that the situation
would not develop under the scenario of violence and bloodshed. An
external interference destabilizing the situation is inadmissible," the
Russian Foreign Ministry said on January 1.
Video sent to the BBC appears to show special forces deployed in Ahvaz on January 1: