KYIV, Ukraine >> One of the handful of F-16 warplanes that Ukraine has received from its Western partners to help fight Russia’s invasion has crashed, Ukraine’s Army General Staff said Thursday. The pilot died.

The fighter jet went down on Monday, when Russia launched a major missile and drone barrage at Ukraine, a military statement posted on Facebook said. Four of those Russian missiles were shot down by F-16s, the statement said.

The crash was the first reported loss of an F-16 in Ukraine, where they arrived at the end of last month. At least six of the warplanes are believed to have been delivered.

The Defense Ministry has opened the investigation into the crash.

Earlier Thursday, Russia conducted a heavy aerial attack on Ukraine for the third time in four days, again launching missiles and scores of drones that mostly were intercepted, Ukraine’s air force said.

Russian forces fired five missiles and 74 Shahed drones at Ukrainian targets, an air force statement said. Air defenses stopped two missiles and 60 drones, and 14 other drones presumably fell before reaching their target, it said.

Authorities in the capital, Kyiv, said debris of destroyed drones fell in three districts of the city, causing minor damage to civilian infrastructure but no injuries.

Russia’s relentless and unnerving long-range strikes on civilian areas have been a feature of the war since it invaded its neighbor in February 2022.

Belgium, Denmark the Netherlands and Norway — all NATO members — have committed to providing Ukraine with more than 60 of the planes. That number is dwarfed by the Russian jet fighter fleet, which is around 10 times larger.

Ukraine needs at least 130 F-16 fighter jets to neutralize Russian air power, Kyiv officials say.

U.S. officials told The Associated Press at the end of last month that the first of a batch of F-16s promised by European countries had arrived in Ukraine.