Moscow - A Soyuz capsule carrying three astronauts successfully docked with the International Space Station early on Thursday, bringing the size of the crew at the orbiting outpost to six.
Michael Hopkins of the US and Russians Oleg Kotov and Sergei Ryazansky travelled six hours in the capsule from the Russian-leased launch pad in Kazakhstan before linking up with the space station's Russian Poisk research module at 06.45 Moscow time (02:45GMT).
Kotov is the most experienced member of the crew with two six-month missions in space under his belt while Hopkins and Ryazansky are both on their first missions.
The incoming crew entered the station nearly two hours later where they were welcomed by Russia's Fyodor Yurchikhin, Nasa's Karen Nyberg and Italy's Luca Parmitano who has been on the orbiting lab since May and will be returning to Earth in November.
The crew's six-month mission will include a spacewalk with the Olympic torch.
Kotov and Ryazansky will have the honour of taking the Olympic torch into open space in November as part of the relay of the Olympic flame ahead of the Winter Games being held in Russia's Sochi in February.
The torch will not be lit however, because of safety concerns and will only arrive at the station in November with the next crew.