  We consider the experimental ratios of multistrange to strange antibaryon
production and compare them to the standard Quark-Gluon String Model
predictions. The significant differences between the experimental
bar(Xi)+/bar(Lambda) and, especially, bar(Omega)+/bar(Lambda) values and model
predictions can be interpreted as the signal of the existence of an additional
source of multistrange antibaryon production. The possible connection of this
additional source with Quark-Gluon Plasma (QGP) formation can turn the
bar(Omega)+ production into a good QGP signature.
