A satellite image by Planet Labs PBC shows Russian aircraft lined up at the Saky Air Base in Russia-occupied Crimea a few hours before the explosions on August 9.
A closer satellite view of Russian aircraft before the explosions. Planes from this base are said to regularly launch attacks on Ukrainian territory.
Another photo of the jets lined up at the base hours before the explosions.
After a series of explosions, massive plumes of smoke erupted above the base.
Unidentified Ukrainian officials have told U.S. media that their armed forces were responsible for the explosions but did not give further details. Russia’s Defense Ministry has denied the base was attacked, blaming the explosions on a “violation of fire safety requirements.”
Russian authorities sought to downplay the blasts, saying all hotels and beaches were unaffected on the peninsula, which is a popular tourist destination for many Russians.
However, videos on social media showed tourists fleeing as smoke towered over the nearby coastline. The explosions knocked out windows and caused other damage in some apartment buildings.
A photo of the air base by Planet Labs after the explosions, showing the charred wreckage on August 10.
The Russian Navy lost at least nine military aircraft, including Su-30SM fighters and Su-24M bombers, an analysis of before-and-after images by Schemes, an investigative unit of RFE/RL's Ukrainian Service, indicates.
Several buildings on the base that may have housed ammunition were destroyed, as well.
The August 10 satellite images show several large craters of similar size, indicating it was hit by multiple strikes.
A satellite image by Maxar shows Saky Air Base on May 16.
The same view by Maxar shows damaged Russian aircraft at Saky on August 10.
Crimea's Russian-controlled health department said one civilian had been killed and another eight injured in the blasts. Military analysts called the destruction a huge blow for Russia and a psychological win for Ukraine.