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Vatican firefighters were seen on the roof of the Sistine Chapel installing the chimney, a key moment in the preparation for the May 7 conclave.

A chimney was installed Friday on the roof of the Sistine Chapel ahead of the conclave set to begin next Wednesday, which will decide the successor to Pope Francis.

Vatican firefighters were seen on the roof of the Sistine Chapel installing the chimney, a key moment in the preparation for the May 7 conclave.