According to a report by Gizmodo, Russian cosmonaut Sergei Prokopyev claimed that a mysterious hole in Soyuz capsule docked to the International Space Station was drilled from the inside. The Associated Press reports that Prokopyev was one of two cosmonauts who inspected the hole during an “unprecedented” spacewalk back on Dec. 11. Gizmodo reports that Russian authorities suggested that it could have come from “deliberate spoilage,” but stopped short of making direct accusations.