Israeli-Canadian peace activist Vivian Silver, who had been missing since Hamas’s October 7 attacks has been confirmed dead, an Israeli diplomat in Toronto said Monday, AFP reports.

“Canada mourns her loss,” Canadian Foreign Minister Melanie Joly wrote on X, describing Silver as “a proud Israeli-Canadian and lifelong advocate for peace.”

A feminist activist advocating for peace with the Palestinians, Silver had set up aid programmes for Gaza residents and helped them obtain medical treatment in Israel.

She won numerous prizes for her peace work, and in 2014 she helped found the Women Wage Peace group, a peace movement whose membership has grown to more than 45,000.