Vaezi thanked Japanese Prime Minister Abe Shinzo for his efforts to expand bilateral relations between Tehran and Tokyo wishing him good health and prosperity in a message posted on the former’s Twitter account on Thursday.
Abe decided to resign of his post last Friday due to health problems although he could legally remain the Prime Minister of Japan. He was in office for 7 years and 8 months, IRNA reported.
He became the youngest prime minster of Japan at the age of 52 in 2006, but resigned after a year due to health problems. He took premiership office once again in 2012.
Given his ailing health conditions, he decided to step down to avoid the risk of making incorrect political decisions.
"I have decided that I will step down as prime minister, with the belief that I cannot continue being prime minister if I do not have the confidence that I can carry out the job entrusted to me by the people," Abe, 65, told a news conference.
He said he is suffering a recurrence of ulcerative colitis.
The resignation triggered a leadership race in the ruling Liberal Democratic Party (LDP) which ended on Wednesday when LDP endorsed Yoshihide Suga to lead the party.
The 71-year-old Mr Suga, declared his candidacy for the party leadership at a press conference on Wednesday afternoon, has been a central figure in Abe’s government as chief cabinet secretary for the past eight years, the Financial Times reported.