The situation in Kerch, a city in Russia-occupied Crimea, where a mass killing took place today at a technical college, requires international intervention.

"The situation requires immediate intervention by the international community. Therefore, I turned to Head of the UN Counter-Terrorism Office Vladimir Voronkov and Council of Europe Secretary General Thorbjorn Jagland. I ask you to contribute to the investigation of the terrible tragedy and take the necessary measures for the safety of people," Liudmyla Denisova, Ombudswoman for Ukraine's Verkhovna Rada, said on Facebook on Wednesday.

She also called on Russian human rights commissioner Tatyana Moskalkova to urgently arrive in Kerch and provide the victims of the tragedy with everything they need.

"I am ready to join her and do everything in my power to help the families of the victims and the wounded," the Ukrainian ombudswoman added.

Denisova noted that she was shocked by the news of mass shooting at the Kerch polytechnic college, which killed at least 18 people, and expressed deep condolences to the families and relatives of the victims, adding, "Innocent children died. There can never be any excuses for this."