The University of Massachusetts-Amherst has cut ties with alumnus Bill Cosby amid allegations by women accusing the comedian of sexual assault.

A University spokesman told the Boston Globe that school officials asked Cosby to step down as an honorary co-chairman of the university's $300 million fundraising campaign, and Cosby agreed.

Cosby received a master's and a doctorate in education from the university. He and his wife, Camille, donated several hundred thousand dollars to the school.

Massachusetts Attorney General Martha Coakley sent a letter to the university urging them to cut ties with Cosby. Coakley said that while Cosby hadn't been criminally charged, his association sends the wrong message at a time when the state is focused on the prevention of campus sexual assault.

Cosby's lawyer has called the allegations "unsubstantiated" and "discredited."