The Verge reports that NASA is suspending all contact with Russian government officials. This ban extends to teleconferences, visits by Russian government officials to NASA facilities, email exchanges with Russian officials, and travel to Russia.

NASA's communications with Russia about their support for the two American astronauts currently on the International Space Station are exempt. That includes organization and completion of a scheduled Soyuz capsule launch on April 9.

Astronaut Reid Wiseman is scheduled to head to the ISS on the Russian Soyuz capsule, which is planned to launch on May 28. He's traveling with Russian Cosmonaut Maksim Viktorovich Surayev and European Space Agency astronaut Alexander Gerst.