Iran has vowed to pursue its uranium enrichment program, one day after submitting a response to an incentives package drawn up by world powers trying to curb Tehran's nuclear ambitions.

An Iranian spokesman said Saturday Tehran is ready to negotiate on its atomic program, but that its stance on uranium enrichment has not changed.

Iran's reply to the incentives package was submitted to European Union foreign policy chief Javier Solana on Friday, but no details were released on the reply.

White House spokeswoman Dana Perino said Saturday the United States is going to consult with its allies about what Iran's reply means before making a formal response.

Six world powers: the United States, Britain, France, Germany, Russia and China, are offering Iran economic and trade benefits if it agrees to stop enriching uranium, a process that can be used to produce nuclear weapons. 

The United States and its allies accuse Iran of working to develop a nuclear weapon.  Iran says its atomic program is for peaceful purposes.