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Shocking footage shows the moment a floor collapses underneath dozens of partygoers leaving at least 30 people injured.
The incident happened at an apartment complex three miles from Clemson University in South Carolina.
Guests were partying in a clubhouse building, which is a common area within the apartment complex, when the floor gave way beneath them.
Distressing footage shows people dancing before the floor suddenly collapses.
Clips then show dozens of partygoers screaming as they try to claw their way back up by holding onto pieces of the broken floor.
Management of the Woodlands of Clemson apartment complex said the floor collapsed when partygoers danced in unison, reports CNN.
People fell through the collapsed floor into the basement below.