International Space Section

Russia said Tuesday that astronauts had found an air leak in its section of the International Space Station, with a senior space official calling the air loss beyond expected levels.

The crew of the International Space Station (ISS) evacuated its US section on Tuesday because of a leak of "harmful substances" from the cooling system, Russian news agencies reported.

Russia said Tuesday that astronauts had found an air leak in its section of the International Space Station, with a senior space official calling the air loss beyond expected levels.

The crew of the International Space Station (ISS) evacuated its US section on Tuesday because of a leak of "harmful substances" from the cooling system, Russian news agencies reported.