Iran's President Mahmoud Ahmadinejad. (Photo: Reuters)
The Saudi monarch "sent a written letter to President Mahmoud Ahmadinejad inviting him to attend the extraordinary Islamic solidarity meeting which will be held in Mecca" in mid-August, SPA reported.
Tensions have been running high between the Sunni-dominated kingdom and Shiite Iran as both regional powers had taken opposite stances on the uprisings in Bahrain and Syria. Iran had voiced support to a Shiite-led uprising in Bahrain which Saudi Arabia had sent troops to crush last year.
In Syria, the kingdom had called for arming rebels against the regime of President Bashar al-Assad -- who belongs to the Alawite minority, an off-shoot of Shiite Islam -- while Iran has been repeatedly accused of sending military aid to the Syrian government. Tehran has denied the claims.
Saudi Arabia last month called for the summit in a bid at "unifying the ranks" of Muslims.
Saudi Arabia hosts the headquarters of the 57-member pan-Muslim body -- the Organisation of Islamic Cooperation which is based in the Red Sea city of Jeddah.