Rescuers in Taiwan pulled more people alive from a collapsed buildings on Sunday, a day after a strong earthquake shook the island.
At least 32 people are known to have died in the quake, which struck at about 4am on Saturday, at the beginning of a Lunar New Year holiday, including 16 found in the collapsed Wei-guan Golden Dragon building in the southern city of Tainan.
Liu Shih-chung, Tainan city government deputy secretary general, said television footage of its ruins suggested the possibility of structural problems related to poor-quality reinforced steel and cement.
Taiwan's Government says the building had obtained its construction permit legally and withstood a much more destructive quake in 1999.
Reuters witnesses at the scene of the collapse saw large rectangular, commercial cans of cooking-oil packed inside wall cavities exposed by the damage, apparently having been used as building material.
Rescue efforts underway Source: Twitter
This was a problem found in some of the buildings that collapsed in other parts of Taiwan in the 1999 quake.
The destruction at that time revealed that cooking-oil cans had been used as filler inside the walls of some buildings.
Those found alive on Sunday include a 20-year-old identified by Taiwan media as Huang Kuang-wei and another man in his 20s surnamed Kuo, who was able to walk out from the rubble, supported by rescuers. Both were sent to hospital.
Firefighters, police, soldiers and volunteers combed through the ruins, some using their hands, watched anxiously by dozens of the victims' family members who wore thick jackets, woollen hats and scarves on a chilly morning.
"She's not answering my phone calls ... I am trying to hold my emotions and stay strong. I'll do that until I find her," said a woman surnamed Chang, 42, waiting to hear from her 24-year-old daughter who lived on the fifth floor of the complex.
"Nothing matters but to get her out. The lady living across the hallway was rescued yesterday. I know they will find her, but I have also planned for the worst. It's been more than 20 hours now."
Around 120 people are still beneath the rubble of the commercial-residential block, with most them trapped deep in the wreckage, the government said.
Images on social media purporting to portray the impact of the powerful earthquake. Source: Twitter
Bodies continue to be found, including those of two sisters, aged 18 and 23, Taiwanese media reported.
The building's lower floors pancaked on top of each other in the 6.4 magnitude quake and then the whole structure toppled, raising immediate questions about the quality of materials and workmanship used in its construction in the 1990s.
Questions being asked in the aftermath
Speaking earlier in the day, Tainan Mayor William Lai told reporters efforts were focusing on 29 people who are closest to the rescuers, with lighter equipment like drills being used.
"The other 103 are believed to be at the lower floors of the building, and we can't find an accessible route to those areas at the moment."
The extent of damage to the Golden Dragon Building has raised questions.
Liu Shih-chung, Tainan city government deputy secretary general, said television footage of its ruins suggested the possibility of structural problems related to poor-quality reinforced steel and cement.
Authorities said the building had 96 apartments and 256 registered residents, though more people were inside when it collapsed.
The force of the earthquake documented by USGS. Source: USGS
Rescuers wearing red and yellow overalls pulled more than 240 survivors from the ruins and inserted huge supports under slabs of leaning concrete as they searched for additional survivors.
Buildings in nine other locations in the city of 2 million people had collapsed and five were left tilting at alarming angles.
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