... Jerusalem is destroyed. While Lehi and his company were still wanderers in the Arabian wilderness, the Lord gave him the promise that he would receive word of the destruction of Jerusalem. (1 Ne. 17:14) Now, after their arrival in America, the Lord gave them a vision in which the fate of that city was revealed.
The Prophet Ezekiel, who at that time was in Babylonia, among the exiles, also had a vision of the destruction of the holy city. He writes, "In the ninth year, in the tenth day of the month, the word of the Lord came unto me, saying, Son of man, write the name of the day, even of this selfsame day; the king of Babylon drew close unto Jerusalem this selfsame day." (2) That is, Nebuchadnezzar, on that day began the siege which was to end in the capture of the city. The siege lasted a year and a half, and two years after the beginning of it, the news of the fall of the city reached Tel Abib in Babylon, where the prophet lived, and where many of the Jewish exiles were concentrated.
We note the fact that the Lord communicated the news of the calamity to his people, both in Asia and America, through his prophets. Did he also, by some means or other, reveal it to the so-called lost tribes? Who knows?