Health officials in Papua New Guinea have confirmed a measles outbreak in the Sandaun province, the first such outbreak since 2005.
Samples taken from three boys were diagnosed positive by the Central Public Health Laboratory last week.
The health department says the three, who are less than two years old, are from two villages in the Vanimo Green District close to the Indonesian border.
The Health Secretary, Pascoe Kase, says there is no information on whether they had been vaccinated of if they have travelled.
Mr Kase says health facilities across the country have been put on alert and instructed to investigate patients of any age reporting a fever and rash, and collect blood samples and throat swabs to check for measles.