The Ukrainian Ministry of Defense reported Monday that a drone strike had demolished Russian Kalibr cruise missiles being shipped by train in Dzhankoi, located in Russian-held Crimea.

The Ukrainian government did not formally claim responsibility for the attack but stated it was part of the effort to “demilitarize Russia and prepare the Crimean peninsula for de-occupation.”

According to Sergei Askyonov, the leader of the annexed territory, a drone strike had occurred, and their air defense systems were activated. He also reported that one individual was injured, and two structures were damaged.

“All the drones targeted civilian sites. For example, one was hit over the Dzhankoi technical school and came down between the instruction area and a student residence,” said Oleg Kryuchkov, an adviser to the Russia-installed head of Crimea.

“There are no military sites nearby. The others were downed in residential areas. In addition to explosives, each one carried shrapnel.”

The Ukrainian Air Defense has significantly influenced the country’s fight against Russian aggression. In recent months, Ukraine has seen increased air defense capabilities, including long-range missile systems. This has enabled them better to protect their people from Russian cruise missiles such as Kalibr.

 The Ukrainian Air Force is one of the five branches of the Armed Forces of Ukraine and is responsible for protecting its airspace. The Air Force has recently received upgrades to its air defense systems, including the S-300 missile system, which recently shot down a Russian Su-34 fighter. Additionally, NATO allies have provided Ukraine with MiG-29 fighter jets capable of engaging enemy aircraft at close range.