Watch Live: Biden speaks about Alexey Navalny's reported death

President Joe Biden will be speaking Friday afternoon at the White House about the reported death of Russian opposition leader Alexey Navalny. 

Navalny, Russia's most prominent opposition leader, died in a Russian penal colony, prison authorities said Friday. The prison authority said Navalny "felt unwell" after going for a walk on Friday and "almost immediately" lost consciousness. Resuscitation measures were attempted, but emergency doctors confirmed his death. He had survived at least two previous suspected poisoning attempts. 

Vice President Kamala Harris, who is in Germany for the Munich Security Conference, said if the reports of his death were confirmed, "this would be a further sign of Putin's brutality. Whatever story they tell, let us be clear: Russia is responsible."