The U.S. intelligence services are now supposed to suspect Ukrainian special forces behind the attack.
Intercepted messages are intended to substantiate this assessment. However, according to the New York Times report, the United States does not have any concrete evidence as to which government officials, units or agents could be involved. It is also unclear whether President Volodymyr Zelensky could have known about an operation. For the time being, there is only a "low degree of certainty," it said.