United Kingdom, April 24 -- The Vatican has been accused of covering up what it knows about unidentified flying objects (UFOs).

UFO investigator and filmmaker Mark Christopher Lee has implored the Vatican to share its knowledge of UFOs, following the recent passing of Pope Francis and ahead of the appointment of a new Pope.

The filmmaker said: "If the Church is truly committed to spiritual truth and human enlightenment, then it must no longer suppress information that could fundamentally reshape our understanding of our place in the cosmos."

Lee - whose new book, 'God Versus Aliens', explores the religious aspects of UFOs - has suggested that the Catholic Church is still withholding the Third Secret of Fatima, a mysterious message supp...