"I was shocked by the news of this incident and the attacks on churches and synagogues in the cities of Makhachkala and Derbent, which occurred on the bright Orthodox holiday — Trinity Day," Zhang said, adding that there can be no justification for terrorism.
The SCO will continue to persistently strive for the complete eradication of terrorism, the head added.
On Sunday evening, unknown gunmen opened fire at two churches, a synagogue and a traffic police station in the cities of Derbent and Makhachkala, prompting the authorities to launch a counterterrorist operation.
Dagestan head Sergei Melikov said that more than 15 police officers and several civilians were killed in terrorist attacks in Russia’s Dagestan.