Updated at 4:57 p.m. ET
Former German Chancellor Helmut Kohl, who for more than a decade and a half helmed a country through historic upheaval, died Friday at age 87. The German leader's political party, the Christian Democratic Union, confirmed Kohl's death on Twitter.
"We are in sorrow," the party tweeted.
In a statement, former U.S. President George H.W. Bush mourned the death of his colleague and close ally, who first led West Germany and then oversaw its reunification with Communist East Germany.