103 The deep feelings of paternal love for all mankind which God has implanted in Our heart makes it impossible for Us to view without bitter anguish of spirit the plight of those who for political reasons have been exiled from their own homelands. There are great numbers of such refugees at the present time, and many are the sufferings—the incredible sufferings—to which they are constantly exposed.
Source: Pacem in Terris (Vatican.va)