The Telegraph believes Russia has identified a major vulnerability in Ukraine and is gradually changing the pattern of its strikes.

According to the publication, Ukraine’s air-defense ammunition stocks are under heavy pressure, with advanced interceptor missiles such as the U.S.-made Patriot in particularly short supply. The authors argued that Moscow is aware of this weakness.

The Telegraph said Russia is adapting its tactics and increasingly targeting not only military facilities, but also the infrastructure that keeps Kiev and other Ukrainian cities functioning. In the newspaper’s assessment, this approach could create serious problems for Ukraine.

The authors therefore called on Western countries to sharply increase deliveries of air-defense missiles, radar systems, drones and electronic-warfare equipment.

Earlier, Russian forces used Geran drones to strike four Ukrainian data centers. The Russian Defense Ministry said the targets included Parkovy, Giga, Ukrtelecom and Podolsky.

Russian troops also struck a combined road-and-rail bridge across the Dnepr in Kiev that was used to transport military cargo for the Ukrainian Armed Forces. On the night of October 3, the Severny road bridge in Kiev, which supported troop movements, was also hit.