A prominent Russian media blogger said on Saturday that decoy missiles used by Russia failed to overcome Ukrainian air defenses during missile attacks aimed at Kyiv on Friday.

Russian warplanes fired 19 long-range missiles at targets in Ukraine on Friday morning, killing one civilian in the central region, wounding eight others and damaging an industrial facility, officials in Kyiv said, Reuters reported.

The attack was the first missile attack carried out by Russia in weeks, mostly using drones for night strikes.

Russia used seven Tu-95 bombers for missile strikes on different regions of the country, the Air Force of Ukraine reported.

The head of the Kyiv military administration, Serhiy Popko, said that the target of the attack was the Ukrainian capital, but all the missiles were shot down by air defense systems during the approach.

A Russian Milblogger claimed on Saturday that Russian forces used Kh-55 decoy cruise missiles, which closely resemble an upgraded version of Kh-101 missiles, to confuse Ukrainian air defenses, the Institute for the Study of War reported.

Milblogger argued that Russia’s use of decoy missiles explained why Russian missiles did not hit any targets in Kyiv.

A Russian military correspondent complained that it was “virtually impossible” for Moscow’s forces to launch enough X-55 decoy missiles to overcome Ukrainian air defense because of Russia’s limited number of Tu-95 and T-160 bombers.

According to ISW, Russian forces have previously used Kh-55 missiles, along with other missile variants and unmanned aerial vehicles, as decoys to overcome Ukrainian air defenses and to compensate for a shrinking stockpile of precision missiles.

Ukrainian officials have repeatedly emphasized that the Kyiv forces do not have enough air defense systems to cover the entire territory of Ukraine to the extent that Ukrainian air defense currently protects the country’s capital.

Ukrainian military analyst Kostyantyn Mashovets said on Friday that Russian forces are conducting enhanced aerial reconnaissance before launching large-scale, long-range strikes against targets in eastern and southern Ukraine.

Mashovets said Russian forces had flown seven reconnaissance flights before the missile strikes on Friday morning, a significant increase from one or two flights in previous days.

Russian forces are likely trying to counter Ukraine’s limited air defenses ahead of an expected large-scale strike campaign this cold season, ISW notes.