BAGHDAD - Iraq took delivery on Monday of several ancient artifacts seized by US customs officers in Philadelphia after being looted from Baghdad's national museum during the US-led invasion in 2003.

At a ceremony in Baghdad, Iraq's foreign minister, Hoshiyar Zebari, handed over the recovered relics to the country's antiquities minister, Mohammed al-Uraibi.

Nestled in a protective foam casing inside a small square box were 11 cylinder seals made from agate and alabaster. They once hung around the necks of important men of state and were used to affix their personal stamps to documents.

"We are standing before antiques that belong to 2,000 and 3,000 BC," said Amira Iidan, head of Iraq's antiquities and heritage office, pointing out several dating from Babylonian times.

Antiquities Ministry spokesman Abdul-Zahra al-Talagani said the artifacts were found in Philadelphia by customs officials last month and handed over to the Iraqi embassy in Washington. He did not know the circumstances of their discovery.

Thousands of antiquities in Iraq, often referred to as the cradle of civilization, were looted in the aftermath of the US invasion. Iraqi officials have blamed the pilfering on organized smugglers and occupying foreign troops.

Many of the artifacts were stolen from the national museum in Baghdad, but many thousands more from the estimated 10,000 poorly guarded archaeological sites scattered around Iraq, which has been home to many cultures over the centuries.

Iraq is now trying to reclaim the artifacts, a number of which have turned up at art auctions around the globe.

In April, Syria returned about 700 stolen artifacts, including gold coins and jewelry that had been seized by its customs officers.

"This is only the start. We hope to return more of these pieces in the near future," said foreign minister Zebari.

Antiquities Minister Uraibi said some 15,000 items had been stolen during the wholesale looting of the national museum in 2003, of which 5,000-6,000 had been returned.