Oscar-winning actress Lupita Nyong’o has become the latest to accuse Harvey Weinstein of a series of incidents of sexual harassment – describing her feelings of guilt for not speaking out sooner, and vowing that the culture of silence must end.

Nyong’o, 34, wrote in searing detail about her encounters with the shamed Hollywood producer, which began when she met him at an industry event, and ended with her, having won her Oscar, stating that she did not want to work with him, in 2014.

“He was one of the first people I met in the industry, and he told me, ‘This is the way it is.’ And wherever I looked, everyone seemed to be bracing themselves and dealing with him, unchallenged,” she wrote, in an op ed published on Thursday in The New York Times.

“I did not know that things could change. I did not know that anybody wanted things to change. So my survival plan was to avoid Harvey and men like him at all costs, and I did not know that I had allies in this.”

She said that she first met him in Berlin, as a young actress, and was advised by an actress at her table to be wary of getting on the wrong side of him.