Health officials in Turkey say a child who died last week in the eastern part of the country was a victim of the H5N1 strain of bird flu.

The Turkish health ministry said Thursday tests confirmed the presence of the deadly strain in 11-year-old Hulya Kocyigit. She died last Friday, one day after her 15-year-old sister and several days after her 14-year-old brother died of the deadly disease.

Health officials say preliminary tests indicate two more Turks have been stricken with the deadly H5N1 strain. At least 15 people in Turkey were confirmed to have the virus earlier this week.

The developments in Turkey came as the World Health Organization urged Asian governments to speed up testing for bird flu to help identify early signs of a pandemic.

Some information for this report was provided by AFP, AP and Reuters.