A black transgender woman wanted to be heard, but the white men wanted to celebrate.

The scene at New York City’s Stonewall Inn on Saturday, as reported by multiple witnesses on social media, showed how long-simmering tensions between transgender women of color and white gay men have boiled over during the celebration of World Pride and the 50th anniversary of the Stonewall uprising.

The unidentified woman wanted to address the crowd inside the Greenwich Village gay bar where patrons fought back against police harassment 50 years ago, birthing the LGBTQ movement. She arrived unannounced and disrupted a drag show, drawing an unfriendly response at first. The crowd eventually warmed and she was given the microphone and spoke for 12 minutes.

“She read the names of the black trans women who died. Facts about them. Their obituaries. She called on everyone in the bar to help. I would like to say the audience was respectful, but there was quite a bit of chatter and a few jeers,” witness Aspen Eberhardt, finance manager of the gay rights group PFLAG, wrote on Twitter.