A story in the normally authoritative RIA Novosti website says that the leak in the orbital module of a Soyuz transport docked to the International Space Station was caused by a worker who mistakenly drilled a hole through the hull during production, not by a debris strike as originally believed.
The story says the worker patched the hole with glue. However, the glue was apparently sucked out into the vacuum of space, causing a small leak that lowered the atmospheric pressure on the space station that houses six people.
Astronauts aboard the station have patched the leak. The astronauts were never in any danger from the slow leak.
Russian officials have vowed to find the RSC Energia worker responsible for the mistake.