Wild UConn National Championship Celebrations Result In Student Expulsions

The insane celebrations on UConn's campus following the school's basketball team's championship win in April have now cost several students dearly ... TMZ Sports has confirmed a few have been expelled over it all.

UConn spokesperson Stephanie Reitz says while some investigations into the postgame incidents in Storrs, Conn. remain ongoing ... some have closed -- and they've resulted in students being perma-banned from the university.

Others could suffer similar fates soon -- Reitz tells us there are further hearings still on the school's agenda.

"We'll likely have a better picture later in the summer of the totality of the outcomes," Reitz said ... adding, "since students have the opportunity for an appeals process if they disagree with the proposed outcome, and in those circumstances, the case remains open until that takes place and a final decision is made."

The school initially launched investigations into the partying on April 3 ... just hours after students were seen wildly celebrating the Huskies' 76-59 win over San Diego State.

Video shot by bystanders shows students smashed windows ... while others ripped down light poles and lit fires in the streets.

Some were even accused of flipping a car on its side.