RIYADH, March 22 (Reuters) - An Islamic Development Bank official said on Wednesday that the bank's upcoming U.S. dollar sukuk issue would be in the range of previous issues, between $1 billion and $1.5 billion.

The bank is still in the process of speaking with advisers, Mohamed Hedi Mejai, director of enterprise development at the IDB, told a news conference in Riyadh. He did not elaborate on a time frame for the issue.

Banking sources told Reuters on Monday that the IDB had appointed eight banks to lead the transaction, including Emirates NBD, Goldman Sachs, Gulf International Bank, HSBC and Standard Chartered.

(Reporting by Katie Paul and Marwa Rashad; Editing by Andrew Torchia) ((Katie.Paul@thomsonreuters.com;))