This informs RIA Novosti with reference to the press secretary of the court Ksenia Pervovlasenko.

“By a decree of the Lefortovo Court, a preventive measure in the form of detention Kovalev Roman was elected for a term of up to August 5,” she said.

It is indicated that Kovalev is charged under Art. 275 of the Criminal Code of Russia (treason).

The Agency, citing data from the website of the Moscow Institute of Physics and Technology, reports that Kovalev is the deputy head of the department of the MIPT spacecraft.

Earlier, the 75-year-old employee of the TsNIImash Kudryavtsev was transferred to the city hospital for medical examination at his request.