Language in the "peace deal" will give the U.S. exclusive rights to develop a key transit route that will be named after Trump.

Iran threatened on Saturday to block a corridor planned in the Caucasus under a regional deal sponsored by U.S. President Donald Trump, Iranian media reported, raising a new question mark over a peace plan hailed as a strategically important shift.

WASHINGTON (Reuters) -Azerbaijan and Armenia signed a U.S.-brokered peace agreement on Friday during a meeting with U.S. President Donald Trump that would boost bilateral economic ties after decades of conflict and move them toward a full normalization of relations.