A magnitude 6.4 earthquake struck southern Taiwan early Saturday, toppling several buildings and killing at least three people in Tainan, one of the island's oldest cities, according to local news reports.
At least one of the buildings that fell was residential and was 17 stories tall. Firefighters and other rescue workers scrambled through the wreckage, searching for survivors.
More than 220 people were pulled from the rubble and 115 hospitalized, fire department officials said. Three people -- including a 10-day-old girl and a 40-year-old man -- did not have vital signs. It was unclear how many more people might still be trapped.
The earthquake knocked out 69...