Three years after the historic visit of Pope Francis to the Greek island of Lesbos, the pope has dispatched one of his closest aides to the island’s massive refugee camp where many people are still trapped. Roughly 15,000 refugees and asylum-seekers are believed to be stuck on Lesbos and a handful of other Greek islands in an effort to reach Europe.

Cardinal Konrad Krajewski, the Papal Almoner, boarded a plane to Greece Monday morning with a message of hope and closeness to refugees still trapped in the camp.

Speaking about his visit to the island of Lesvos in St. Peter's Square on Sunday, Pope Francis said his visit with Ecumenical Patriarch Bartholomew and Archbishop Ieronymos of Athens and of All Greece, aimed "to signify the unity in charity of all the disciples of the Lord.”

The spiritual leader of the world’s Orthodox Christians has told migrants in a detention center on the Greek island of Lesvos that the world will be judged by how it has treated them.