Authorities have completed the initial selection of crew members for China's first manned space docking mission, and the roster includes female astronauts, according to an official with knowledge of the matter.

But the final three-person crew will be decided "on the very last condition," said Niu Hongguang, deputy chief of China's manned space program.

The manned spacecraft Shenzhou-9 will take its crew members to the Tiangong-1 space module lab between June and August this year. Tiangong-1 was launched in September last year and completed the country's first space docking with the unmanned Shenzhou-8 spacecraft last November.