The Ukrainian security service (SBU) says it has foiled a Russian plot to assassinate President Volodymyr Zelensky and other high-ranking Ukrainian officials.

Two Ukrainian government protection unit colonels have been arrested, the BBC reported. 

The SBU said they were part of a network of agents belonging to the Russian state security service (FSB).

They had reportedly been searching for willing "executors" among Zelensky's bodyguards to kidnap and kill him.