U.S. military commanders said coalition forces found a huge amount of nerve agent antidote and instructions on chemical warfare. They said thousands of boxes of white powder were also discovered at an industrial site south of Baghdad.

The white powder at the Latifiyah industrial facility 40 kilometers south of Baghdad is being examined, the commanders said. Latifiyah also produces munitions and explosives and was examined by the United Nations in February.

So far, U.S. officials said coalition forces have not found Iraqi WMD. They said the Latifiyah was probably connected to although not deemed a WMD facility.

The first step was the renaming of Saddam International Airport, captured on early Friday. The new name given by the United States is Baghdad International Airport.

"The airport now has a new name, Baghdad International Airport, and it is the gateway to a new Iraq," Brig. Gen. Vincent Brooks, deputy chief of operations at U.S. Central Command, said.

It was the first successful suicide attack in more than a week against U.S. forces. In the first strike, four U.S. soldiers were killed outside the Shi'ite city of Najaf.

"The enemy is trying to enter Baghdad," Iraqi Information Minister Mohammed Sahaf said on Friday in a message he attributed to President Saddam Hussein. "Let every family be assured. We are determined to repel them and destroy them at the walls of the capital Baghdad, as we are determined to destroy their armies on every inch of Muslim Iraqi land."

The Iraqi soldiers were members of the Baghdad division of the Republican Guard. Officials said the Baghdad and Medina divisions have been neutralized.