During the overnight hours of August 29th, the International Space Station Flight Controllers on ground detected a slight pressure leak, as reported by blogs.nasa.gov. It was determined by flight controllers in both Houston and Russian Mission Control, that the change in pressure was not alarming enough to wake the crew to be addressed immediately. Instead, the crew was delivered the development after their regularly scheduled wake up call, Thursday morning. Collaboration between the ground flight controllers, American astronauts, and Russian cosmonauts resulted in finding the source of the leak located in the Russian portion of the space station. Station crew and ground teams are continuing to work solutions at this time and no immediate dangers to the crew or station have been identified.
For ongoing coverage follow: https://blogs.nasa.gov/spacestation