1:25 PM PT -- The Kings released a statement on the investigation ... saying, “Luke Walton is our head coach and we support him and his team as they continue to prepare for the upcoming season.”

Walton also spoke out ... saying, "I am 100% focused on coaching the Sacramento Kings, and energized to work with this incredible group of players and coaches as we start the preseason."

Sacramento Kings head coach Luke Walton[1] will NOT be punished by the NBA ... after the league investigated claims he sexually assaulted a female reporter.

Walton was accused of forcing himself on former L.A. Lakers reporter Kelli Tennant in a Santa Monica hotel room back in 2014.

The Kings and the NBA released a joint statement on Friday, announcing there was insufficient evidence to support the allegations.

"On April 22, 2019, Ms. Tennant filed a civil lawsuit against Coach Walton and, on April 23, held a press conference in which she described claims of sexual assault, verbal and physical harassment, and unwanted physical contact over a three-year period. Two days later, the Kings and the NBA commenced an investigation."

"The investigatory team was led by Sue Ann Van Dermyden, from the Sacramento law firm Van Dermyden Maddux, and Elizabeth Maringer, Senior Vice President and Assistant General Counsel of the NBA."

The statement continues ..."During the investigation, more than twenty individuals were interviewed, including Coach Walton, and numerous documents and other relevant materials were reviewed."

"The investigators made repeated attempts to interview Ms. Tennant, but, through her counsel, she declined the opportunity to

Read more from our friends at TMZ