Two high-risk residents in Flanders, Belgium, die after West Nile virus infection. Flemish health authority Departement Zorg announced the two deaths publicly on Thursday.

Officials stated that the victims were people at risk of severe illness.

Authorities withheld every identifying detail about the deceased, citing strict privacy protections. West Nile virus spreads mainly through mosquitoes that have bitten infected birds.

Belgium has recorded ten cases nationwide, including two confirmed infections in Brussels. Health officials are expected to release new updates on the situation soon.