  We give an outline of possible extragalactic explanations of the highest
energy cosmic ray events. We give a classification of the possible particles
which could have caused the events and try to find suitable sources for each
class. In contrast to some previous investigations of other authors, we find a
possible candidate of a local FR-II radio galaxy close to the Fly's Eye event,
and less powerful active galaxies close to the AGASA event. We also note the
interesting coincidence that we have strong, distant quasars inside the arrival
direction error regimes of both the Fly's Eye and AGASA event. We briefly
discuss the consequences for the cosmic ray spectrum and composition at highest
energies, which could be investigated by future experiments.
