World powers will meet Tuesday in Berlin to discuss possible further sanctions against Iran for its disputed nuclear program.

The meeting will involve foreign ministers from Germany and the five permanent U.N. Security Council members -- the United States, Britain, France, Russia and China.

A French diplomat who asked to remain anonymous says the foreign ministers are expected to discuss the draft of a third U.N. sanctions resolution. He says the resolution could be ready for presentation to the Council by the end of this month.

The Security Council has already imposed two sets of sanctions on Iran for its failure to suspend uranium enrichment -- a process that can be used to make nuclear weapons.

Russia and China have been reluctant to back tougher measures against Iran.

The United States and its Western allies accuse Tehran of developing nuclear technology to produce nuclear weapons. Iran denies the charge.

A U.S. National Intelligence Estimate, released last month, says Iran used to have a nuclear weapons program, and it has the capability to restart that program.

The report also said Iran likely would be capable of producing enough enriched uranium for a nuclear weapon roughly between 2010 and 2015.

Some information for this report provided by Reuters, AFP and AP.