Germany summoned Iran’s ambassador on Monday over Tehran’s heavy-handed crackdown on the popular protests across the country, triggered by the death of a hijab victim.

Tehran’s envoy was called as the spokesperson of the German Foreign Ministry said that they would explore all options with other European Union countries about possible sanctions on the Islamic Republic over its suppression of the demonstrations.

On Sunday, the EU foreign policy chief slammed Iran’s handling of protests as unjustifiable and unacceptable, hinting that the European Union may issue sanctions over the crackdown.

In a statement on behalf of the EU, Josep Borrell said that “despite repeated calls for restraint, the response of the Iranian security and police forces to demonstrations has been disproportionate and resulted in the loss of lives as well as a large number of injuries.”

“The EU and its member states urge the Iranian authorities to strictly abide by the principles enshrined in the International Covenant on Civil and Political Rights, to which Iran is a party,” he said, calling on the Islamic Republic “to immediately stop the violent crackdown on protests and ensure internet access, as well as the free flow of information.”

“The European Union will continue to consider all the options at its disposal ahead of the next Foreign Affairs Council, to address the killing of Mahsa Amini and the way Iranian security forces have responded to the ensuing demonstrations,” read the statement.