Iran's Foreign Minister has sent separate messages to his counterparts from Muslim countries, congratulating them on the beginning of the holy month of Ramadan.

Iran PressIran News: In his messages, Hossein Amir-Abdollahian called for unity among Muslims around the world in order for the lofty causes of Islam to materialize.

After sighting the crescent moon, the office of Iran's Leader Ayatollah Khamenei announced Thursday, March 23, as the start of Muslims' the holy month of Ramadan.