FACTBOX: Sanctions against Iran

(Reuters) - Iran will respond on Friday to incentives offered by six world powers to try to entice Tehran to stop enriching uranium, which they fear could result in a nuclear bomb.

European Union states agreed on June 23 to impose new sanctions on Iran, including an asset freeze on its biggest bank, over its refusal to meet demands to curb its nuclear programme.

Following are some details about the sanctions and those already imposed by the U.N. Security Council and the United States.

* WHAT DO THE NEW EU SANCTIONS INCLUDE?

-- The new sanctions will target businesses and individuals that the West alleges are linked to Iranian nuclear and ballistic programmes.

-- There are visa bans on senior officials such as Revolutionary Guards head Mohammad Ali Jafari, Defence Minister Mostafa Mohammad Najjar and atomic energy chief Gholamreza Aghazadeh.

-- Iran's biggest bank, Bank Melli will face an asset freeze under the moves, while visa bans will target "very senior experts" inside Iran's nuclear and ballistic programmes.

* WHAT SANCTIONS HAVE ALREADY BEEN IMPOSED?

U.N. SANCTIONS: