Russia is said to have tested a missile in space and thus destroyed its own satellite.
The consequence, so the accusation of the US government: A cloud of debris - which now threatens astronauts.
Washington / Moscow - The US government accuses Russia of having jeopardized the safety of astronauts on the International Space Station by testing an anti-satellite missile.
"We condemn Russia's ruthless test," said US Secretary of State Antony Blinken.
The shelling of a Russian satellite left space debris "which endangers the lives of astronauts, the integrity of the International Space Station and the interests of all nations".
The German astronaut Matthias Maurer has recently been on the ISS.
The US space agency Nasa joined Blinkens criticism.
"I am outraged by this irresponsible and destabilizing approach," said Nasa boss Bill Nelson.
"With its long and traditional history in manned space travel, it is unimaginable that Russia would not only endanger the American and international partner astronauts on the ISS, but also its own cosmonauts." Space station ".
Debris endangers space travel
The US Forces Space Command said the test has so far produced more than 1,500 traceable debris in low-earth orbit. Presumably, these would ultimately disintegrate into hundreds of thousands of smaller debris and "remain in orbit for years and possibly decades". This means "a significant risk for the crew of the International Space Station and other manned space activities as well as for the satellites of several countries".
"Russia has shown that it deliberately disregards the security, protection, stability and long-term sustainability of space for all nations," criticized US General James Dickinson.
"Russia is developing and deploying capabilities to actively deny the United States and its allies and partners access to and use of space."
German astronaut Maurer brought to safety
Because of a possible collision with space debris, the ISS was briefly evacuated twice.
According to the Russian state agency Tass, the cosmonaut Pyotr Dubrov said the seven space travelers had escaped to safety in two spaceships docked at the station.
According to the European Space Agency Esa, Maurer switched to the "Crew Dragon" with which the Saarlander had only reached the outpost of humanity on Friday last week.
In the event of a collision, the crew could have flown back to earth.
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Nasa also announced that the astronauts and cosmonauts on the ISS had initiated "emergency procedures for security" after air traffic control had woken them up because of the debris.
The hatches to certain modules have been closed.
When the ISS flew through the cloud of debris, the astronauts and cosmonauts switched to their spaceships.
Tass reported that the director general of the Russian space agency Roscosmos, Dmitri Rogozin, will meet with NASA representatives this Tuesday in Moscow.
The meeting, which has been scheduled for a long time, will now also deal with the incident.
dpa