More than 586 people have recently died of dengue fever in Yemen's southern port city of Aden which has been experiencing an armed conflict for months, agencies reported.
The number of the casualties from this disease could be higher as the local authorities registered only cases which had arrived at hospitals, the reports quoted director of the provincial healthcare office as saying.
"The figure is big in a city like Aden where many people have been displaced due to the conflict," the director added.
Many people have died of this fever in other Yemeni cities as the health services continued to deteriorate in recent weeks.
The reports also said there are more than 8000 other people in Aden suffering from the fever.
Organizations have lately warned of spread of diseases because of the deterioration of the country's healthcare system while affirming that around 9 million of the people are in need of emergency medical aid.
Hospitals have shut down due to lacks of life-saving medicines and other key supplies especially fuels and electricity.
The lacks are blamed on the armed conflict between the pro-government and pro-Houthi forces as well as a blockade on all Yemeni sea, land and air routes.
The blockade was part of a Saudi-led Arab military operation which was launched against the Houthi militants in late March.
So far, more than 2000 civilians including hundreds of children have been killed and around 10.000 others injured in the months-long armed conflict in the country.