0939 GMT June 24, 2019
He arrived on Wednesday on a two-day visit, whose aim has been described as easing tension in the region.
Abe said he is determined not to be disappointed in his efforts.
He made the remarks after a meeting with President Hassan Rouhani.
Rouhani said that if the US economic war against Iran is ended, we will witness better days in the future, referring to US sanctions against Iran that President Donald Trump reimposed after withdrawing from the Joint Comprehensive Plan of Action.
To be updated.