Kyiv, May 8 -- Ukraine said it has foiled a Russian plot to assassinate President Volodymyr Zelenskyy and other top military and political figures. Two Ukrainian colonels accused of participating in the plot have been arrested on suspicion of treason.

The Ukrainian domestic intelligence agency, the SBU, said in a statement that the plot had involved a network of agents - including the two colonels - that was run by Russia's Federal Security Service, or FSB, the main successor to the KGB. According to the SBU, the agents working at Russia's direction were tasked with identifying people close to Zelenskyy's security detail who could take him hostage and later kill him.

The agency's statement said the other top Ukrainian officials targeted...