A pro-Palestinian student-led demonstration at Columbia University in New York was reportedly infiltrated by counter-protesters who sprayed a harmful substance on peaceful protesters, leading to at least eight hospitalisations and sparking an investigation by the New York Police Department. The demonstration, in support of Palestinian civilians and a ceasefire in Gaza, was led by Students for Justice in Palestine and Jewish Voice for Peace and took place on campus on Friday. While the protesters were congregated in close proximity with one another, around two dozen of them reported being spray…