The cubs were born to Mei Xiang at 5:35 p.m. and 10:07 p.m. Saturday, according to zoo officials.
The sex of the cubs will not be known until a later date, officials said. There is no decision yet on naming the cubs, officials said during a press conference.
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Mei Xiang started going into labor earlier in the day.
A video of the birth is on YouTube.
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