NASA’s senior official for human spaceflight operations said Monday that the US space agency continues to operate the International Space Station as usual with its partners, including Russia.

“Our operations are nominal,” said Associate Administrator for Space Operations Kathy Lueders. She acknowledged that NASA continues to monitor the situation in Ukraine and work with the US State Department. “We’ve operated in these kind of situations before, and both sides always operated very professionally and understand at our level the importance of this fantastic mission.”

NASA flight controllers and other officials continue to work in Moscow, she said, and US and Russian managers have good communication. At the “working level,” at least, there are no signs of trouble. “We, as a team, are operating just like we were operating three weeks ago,” she said.