The explosions occurred at a military airfield near the village of Novofedorivka.
Moscow-imposed authorities in Ukraine's Crimea that was illegally annexed by Russia say explosions hit a military airport near the village of Novofedorivka on August 9.
The Russian Defense Ministry said in a statement that the detonation of aviation ammunition caused the explosions.
"The explosion caused no casualties. No aircraft was damaged," the statement said, without clarifying who or what triggered the detonation. The Russia-appointed head of Crimea Sergei Aksyonov wrote on Telegram earlier that he was on his way to the Novofedorivka to ascertain what the situation was. Aksyonov's advisor Oleg Kryuchkov then urged calm, telling the Black Sea peninsula's residents to wait for the authorities' final conclusions and statements. Hours earlier, videos appeared on social media purporting to depict the blasts.
Last week, five Russian Navy staff members were wounded by an explosion after a presumed drone flew into the courtyard of Russia's Black Sea fleet in the Crimean port city of Sevastopol.
Russia illegally annexed Crimea in 2014 and launched its ongoing unprovoked invasion of Ukraine on February 24.