Tkachuk's Telegram channel said the drone boss was seriously injured in a car explosion on Tuesday but is in stable condition, while his driver was killed. The explosion occurred in the town of Bolshoy Istok, near Yekaterinburg, according to media reports. Mash, a news outlet ​with sources in the police and security services, said Tkachuk's Mercedes was destroyed by an explosive device hidden underneath it. A statement on Tkachuk's Telegram channel accused Ukraine of carrying out the attack and vowed retaliation. On July 30, Andrei Cherezov, developer of a model called "Gadfly," was shot and wounded by an unknown assailant.