"The suppression of protests is escalating, it is much more serious," Pillay told Reuters.
"We have written a letter to the capital in Iran calling for respect for the right to protest that is also a fundamental freedom," said Navi Pillay, UN High Commissioner for Human Rights in a news conference in Geneva.
She also said that a senior Iranian regime’s “human rights official,” who had requested a meeting with her, set for Tuesday, had cancelled it.
"We are really helpless when a country is closed — Iran is one of them. It is very defensive when we raise issues but we will continue to raise them."