More than 100 Harvard researchers received termination notices for federally funded research projects on Thursday, as sweeping cuts to the majority of Harvard’s federal grants begin taking effect across the University’s labs.

The notices, delivered via email from Harvard’s Grants Management Application Suite, informed recipients that their projects had been terminated “per notice from the federal funding agency” and contained a list of terminated grants.

“You are receiving this e-mail because one (or more) of your projects have been terminated,” the emails read.

Harvard Assistant Vice President for Sponsored Programs Kelly Morrison and Chief Research Compliance Officer Ara Tahmassian had warned the researchers in a separate Wednesday email that the majority of Harvard’s awards from federal agencies were terminated.

“The University has received letters from most federal agencies indicating that the majority of our active, direct federal grants have been terminated,” they wrote to recipients.

Some of the terminated grants exceeded $1 million, funding entire research operations, including salaries for graduate students, postdoctoral fellows, and lab technicians.