Iraqi state TV says Ahmad Chalabi, a prominent politician who strongly advocated the 2003 U.S.-led invasion to overthrow Saddam Hussein, has died of a heart attack.

The report on Tuesday said he died in Baghdad but did not provide further details on the circumstances of his death. He was in his early 70s.

Chalabi, a secular Shiite politician who lived in exile for decades, was a leading proponent of the invasion to topple Saddam and provided false information indicating that Iraq had weapons of mass destruction. Many in the Bush administration had viewed him as a favorite to lead Iraq after the 2003 intervention.