Three men’s lacrosse players remain hospitalized with rhabdomyolysis over a week after participating in a 45-minute workout led by a Tufts alumnus and graduate of a Navy SEAL training program, executive director of media relations Patrick Collins wrote in a statement on Monday.

“This is a failure of the strength and conditioning program — an epic failure,” said Douglas J. Casa, chief executive of the Korey Stringer Institute at the University of Connecticut. “Somebody made a dramatic mistake in terms of how the workout was organized in terms of intensity, volume, recovery. Something was dramatically wrong.”

Twelve members of the Tufts University men's lacrosse team were diagnosed with a medical condition related to extreme exertion, and five were hospitalized.

Tufts University says it has launched an investigation after members of the men's lacrosse team were diagnosed with a dangerous medical condition.