PRAGUE — A man identified as a Russian hacker suspected of pursuing targets in the United States has been arrested in the Czech Republic, the police announced Tuesday evening.

The suspect was captured in a raid at a hotel in central Prague on Oct. 5, about 12 hours after the authorities heard that he was in the country, where he drove around in a luxury car with his girlfriend, according to the police. The man did not resist arrest, but he had medical problems and was briefly hospitalized, the police said in a statement.

David Schön, a police spokesman, said on Wednesday that the arrest of the man, whose name has not been released, was not announced immediately “for tactical reasons.”

The police statement said that “the man was a Russian citizen suspected of hacking attacks on targets in the United States,” and that the raid was conducted in collaboration with the F.B.I. after Interpol issued an arrest warrant for him.