More than 100 graduates at Stanford University’s commencement ceremony staged a protest Sunday shortly after Google CEO Sundar Pichai began his keynote address. The demonstrators exited Stanford Stadium while chanting “Free, free Palestine,” according to videos shared on social media. The protest was reportedly organized by groups including Students for Justice in Palestine and No Tech for Apartheid.

Students for Justice in Palestine, one of the organizing groups, has previously called for “death to all collaborators,” echoing rhetoric associated with Hamas concerning Palestinian collaborators. The protest highlights ongoing tensions related to Google’s role in a controversial technology contract.

Pichai, who earned a master’s degree in materials science and engineering from Stanford in 1995, was invited to deliver the keynote address for the university’s 135th commencement. The protest reflects broader criticism connected to Project Nimbus, a $1.2 billion contract in which Google and Amazon are jointly providing cloud computing and artificial intelligence services to the Israeli government.

Critics, including some Google employees and pro-Palestinian activists, contend that the technology could be employed by Israel’s military and security agencies in ways that negatively impact Palestinians. Supporters of the project, however, argue that the services are intended for civilian use and aim to improve government infrastructure.

The Stanford protest is the latest development in a yearslong debate over the ethical implications of technology companies’ involvement in geopolitical conflicts, illustrating the intersection of corporate responsibility, activism, and higher education.