The U.S. Space Command reports “Russian direct-ascent anti-satellite missile test creates significant, long-lasting space debris”:
Russia tested a direct-ascent anti-satellite (DA-ASAT) missile on Nov. 15, 2021, Moscow Standard Time, that struck a Russian satellite [COSMOS 1408] and created a debris field in low-Earth orbit. The test so far has generated more than 1,500 pieces of trackable orbital debris and will likely generate hundreds of thousands of pieces of smaller orbital debris.
Associated Press reports in, “Russian test blamed for space junk threatening space station”:
Once the threat became clear early Monday morning, the four Americans, one German and two Russians on board were ordered to immediately seek shelter in their docked capsules. They spent two hours in the two capsules, finally emerging only to have to close and reopen hatches to the station’s individuals labs on every orbit, or 1 1/2 hours, as they passed near or through the debris.
By the end of the day, only the hatches to the central core of the station remained open, as the crew slept, according to Nelson.
The Cosmos 1408 satellite which was destroyed was in an orbit 65 km above the International Space Station (ISS), but the collision with the anti-satellite missile could have sent debris into orbits which cross those of the station. It will take weeks or months to catalogue and compute the orbits of the pieces of debris large enough to detect, and as their orbits decay over time, more debris will descend and cross the orbit of the ISS.