A six-month-old baby girl has been rescued from the rubble of an apartment building that collapsed after a 6.4 magnitude earthquake in Taiwan.

Rescue teams are continuing their efforts to find the more than 100 people who remain unaccounted for following the collapse of the 17-storey block in the southern city of Tainan.

The baby girl was rescued after more than 30 hours under the ruins of the building and was taken to hospital.

At least 23 people are known to have died in the quake, which struck at around 4am local time on Saturday.

Sixteen of those killed were in the collapsed Wei-guan Golden Dragon Building.

Around 120 people are still under the rubble of the residential block, with most of them trapped deep in the wreckage, the government said.

Taiwanese media say bodies continue to be found, including those of two sisters aged 18 and 23.

Tainan Mayor William Lai said: "Right now we are in the midst of trying to rescue over ten people.

"At the moment, the rescue force consists of special search teams from various counties and cities across Taiwan who have come to provide assistance."

The building's lower floors collapsed on top of each other in the earthquake and then the whole structure toppled, raising questions about the quality of the materials and workmanship used in its construction in the 1990s.