Los Angeles Clippers owner Donald Sterling will be banned for life and fined $2.5 million for racist comments, NBA Commissioner Adam Silver announced Tuesday.

The move comes after days of outrage at ugly words attributed to Sterling from a taped conversation with an ex-girlfriend.

NBC Sports’ Donald Sterling Coverage

The NBA had said if it was unable to authenticate the tapes, but Sterling’s wife told KABC-TV in Los Angeles that it was her husband on the recordings.

At a press conference on Tuesday afternoon, Commissioner Silver said an investigation had confirmed that the voice on the tapes and the “hateful opinions voiced” were those of Sterling.

“Shortly after the release of an audio recording his past Saturday morning, of a conversation that allegedly included Clipper owner Donald Sterling, the NBA commenced an investigation, which among other things including an interview of Mr. Sterling,” said Silver.

“That investigation is now complete,” he said.