Zoo officials are now bottle-feeding the cubs after Tabei showed signs of having difficulty caring for them, the Associated Press reported.
This is Tabei’s third set of cubs. Her other four cubs have been sent to zoos across the country.
Red pandas are an endangered species.
Fewer than 10,000 red pandas are believed to remain in their natural habitat in the Eastern Himalayas, according to WorldWildlife.org.
The Associated Press contributed to this story.