Obama promises new tack on Iran

President-elect Barack Obama says the US will take a new approach to dealings with Iran under his leadership.

Mr Obama said in a US TV interview screened on Sunday that "Iran is going to be one of our biggest challenges".

He said he was concerned about Iran's support for Lebanese Shia party Hezbollah and Tehran's nuclear enrichment programme.

In the wide-ranging interview, Mr Obama also said he planned a special team to deal with conflict in the Middle East.

The president-elect said he was not ruling out prosecution for possible crimes committed by Bush administration officials.

And he repeated his promise to close the Guantanamo Bay prison camp, but suggested it might not happen within his first 100 days in office.