Two Russian cosmonauts and one US astronaut arrived early Sunday at the orbiting International Space Station aboard the Soyuz spacecraft, the US space agency said.
The capsule blasted off Wednesday from the Baikonur Cosmodrome in Kazakhstan. The docking was complete by 0309 GMT Sunday, when the hatch doors opened three hours after the craft arrived, dpa reported.
Russians Alexander Kaleri and Oleg Skripotschka and American Scott Kelly are due to spend five months conducting experiments in the space station.
The Soyuz capsule flew for the first time with digital navigation technology. Soyuz will take over all astronaut transport in 2011, when the US retires its shuttle programme.