President of Ukraine Petro Poroshenko has instructed to establish the cause of children's poisoning in Cherkasy and provide emergency medical assistance, the presidential press secretary Svyatoslav Tsegolko has said.

"Petro Poroshenko has instructed to take all measures to establish the cause of poisoning and provide emergency medical assistance. The president also coordinated further steps with the prime minister," he wrote on Facebook page on Tuesday.

The president's press secretary also noted that the head of the SBU, the head of the State Service for Emergencies and the head of the Cherkasy Regional Administration reported to Poroshenko about the situation with the poisoning of children in Cherkasy.