Earlier today NASA postponed an EVA as an astronaut became ill. The situation has progressed and they are now considering ending the mission early to bring everyone home. Given it’s a medical issue the astronaut and the exact issue aren’t being disclosed.
Full NASA statement:
As an update to our earlier communication regarding a medical situation aboard the International Space Station, the matter involved a single crew member who is stable. Safely conducting our missions is our highest priority, and we are actively evaluating all options, including the possibility of an earlier end to Crew-11’s mission. These are the situations NASA and our partners train for and prepare to execute safely. We will provide further updates within the next 24 hours.