A cholera outbreak has been reported in a Houthi-run prison in Yemeni capital Sanaa, according to a local rights activist.

Axar.az reports that speaking to Anadolu Agency on Sunday, Abdel-Rahman Berman said 24 cholera cases were registered in the Habra prison.

“Four people were transported to hospital due to their deteriorating health conditions,” said Berman, a member of a government panel investigating human rights abuses.

He cited the degrading of sanitation and health systems for the outbreak of the disease.

Last week, the World Health Organization (WHO) said a cholera outbreak has killed 51 people in Yemen since April.

It said that there were 2,752 suspected cholera cases and 58 more people have been confirmed as having the diarrheal disease.

On Saturday, UNICEF said 97 people have died of cholera and diarrhea outbreaks in war-torn Yemen.