"The mission [at the invitation of Naftogaz] came to Ukraine and conducted necessary work to resolve the problem. The next step is an appeal to Russia to study the situation on the other side [of the border]," he said. As reported, Naftogaz Ukrainy Board Chairman Andriy Kobolev in late July accused Russia of reducing pressure at the inlet to the country's gas transportation system, which led to some technological problems at Ukrtransgaz. Gazprom explained the fall in transit on the Ukrainian direction with the weather factor and the decrease in consumers' applications.