Some 26,000 Ukrainian child refugees attended elementary schools and 3,800 went to kindergartens in the Czech Republic in mid-May, which is a 12 percent increase since early April, Czech School Inspectorate head Tomas Zatloukal told reporters on Monday. In reaction to the Ukrainian child refugees attending Czech schools, a half of elementary schools and one in five kindergartens struggle with difficulties to assure a sufficient capacity and teaching staff, Education Minister Petr Gazdik said.