A “statelike actor” infiltrated the Czech Foreign Ministry and hacked emails belonging to the foreign minister and dozens of his colleagues, in a manner similar to the breach of the Democratic National Committee’s servers, the minister announced on Tuesday.
The announcement immediately raised fears across Central Europe of potential interference by Russia, which the United States government said was behind the attack on the D.N.C. That breach resulted in embarrassing leaks ahead of Donald J. Trump’s victory over Hillary Clinton in the United States presidential election. Legislative elections are expected to be held in October — another unnerving resemblance to the D.N.C. hack.