Former President Joe Biden completed a round of radiation therapy at a Penn Medicine cancer center in Philadelphia Monday as part of his treatment for prostate cancer, according to a family representative.

Biden, 82, announced in May that he had been diagnosed with an aggressive form of the disease that had spread to his bones.

A spokesperson for the Bidens, Kelly Scully, said that following his treatment over the course of several weeks, Biden “rang the bell” at Penn, alongside his wife, Jill Biden, his daughter Ashley Biden and grandchildren, Hunter and Finnegan.

Ringing the bell at Penn typically signifies that a patient has completed cancer treatment, according to the health system.

But Biden has not yet made a statement on his treatment, and it wasn’t immediately clear if the form

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