Ten people were wounded in a mass shooting in Denver early Tuesday as thousands packed the streets to celebrate the Nuggets’ first NBA Championship win.

At least three of those hit were in critical condition, cops said, with the suspected shooter among seven others who sustained non-life-threatening gunshot wounds.

The gunshots rang out at about 12:30 a.m. — about 3 1/2 hours after the game — as celebratory throngs packed downtown.

Cops said the shooting was in an area where a lot of people might have come out of bars after the game.

“As far as what led up to this altercation that resulted in the shots being fired, that’s still under investigation at this time,” police spokesperson Doug Schepman said. 

“It did occur in the area where we had largest gathering of folks celebrating during the night.”

Police tweeted that nine “gunshot victims have been identified … plus a suspect who also sustained a gunshot wound. “

“This is a complex, ongoing investigation in its early stages,” the department tweeted in an update.

“Preliminary info indicates multiple shots were fired during an altercation involving several individuals.”

With Post wires