South Korean officials have reported a second outbreak of bird flu at a poultry farm.

The Agriculture Ministry says the new outbreak was confirmed Saturday at a duck farm in Jeongeup, about 250 kilometers southwest of Seoul. The ministry says it will destroy all the ducks on the property.

Officials say more tests will be required to determine if the virus is the virulent H5N1 strain of bird flu.

The farm is 27 kilometers from a chicken farm where the deadly H5N1 strain of bird flu broke out earlier this week. Officials culled 300,000 chickens at the site.

Authorities banned the movement of poultry within a 10-kilometer radius of the site. South Korea's last H5N1 outbreak was reported in March of 2007.

The World Health Organization says 238 people around the world have died from bird flu since 2003. Indonesia reported two deaths last week, raising the country's confirmed death toll to 107.