Iran's President Hassan Rouhani has rejected the resignation of Foreign Minister Mohammad Javad Zarif.
"The presidential office said the resignation had not been accepted," Iran's foreign ministry spokesman Bahram Qasemi said.
The top diplomat had announced his intention to step down on Instagram on Monday evening.
According to Iranian law, the resignation needs to be endorsed by the president for the move to go into effect.

Passenger bus crash in Indonesia kills at least 16 people
Japan prepares to restart world's biggest nuclear plant
Remaining 130 abducted Nigerian students have been released, official says
Failed homemade bombs thrown before Bondi shooting, police tell court
Malaysia court denies ex-PM Najib's bid to serve jail sentence at home
