The peninsula has been hit by three strikes directed by Volodymyr Zelensky’s administration, according to the official. Included in these was one at a Russian air base on Crimea’s west coast.
This saw several aeroplanes destroyed.
The figure shared a Kyiv Government report circulated internally with CNN.
They have requested anonymity because they were not authorised to share the information publicly.
In a speech following the incident at the Saki airbase, Mr Zelensky said the war “began with Crimea and must end with Crimea – its liberation”.
At least one person was killed in the incident at Saki.
Seven military aircrafts are also understood to have been destroyed.
Russia has said the incident was a result of an accident.
The Ukrainian Government has also not officially claimed responsibility.
Other blasts followed, including one at an ammunition depot at a military base in the north.
Russia branded the attacks as an “act of sabotage” but Ukraine, however, “hinted it was responsible”.
On Wednesday, Moscow said it had detained six members of what it called an Islamist terrorist cell in Crimea.
It did not comment on whether these were suspected to have been involved in the explosions.
Following recent blows in Crimea, Russia’s Black Sea fleet based in the peninsula has installed a new commander, according to reports.
This has not been formally announced, though a source told Reuters this was “normal” at the time of a “special military operation”.