Minnesota health officials are reporting three more deaths from swine flu and another death from a flu-like illness.

The state Health Department didn't immediately release details on the cases on Wednesday.

Health officials say 15 people have died from swine flu and one from an unspecified flu-like illness since the H1N1 virus was first identified in Minnesota.

The Health Department's weekly statistics show swine flu waning slightly last week.

Officials say 137 Minnesota schools reported outbreaks of influenza-like illness, less than half the 288 schools reporting outbreaks the week before. Two skilled nursing facilities also reported outbreaks. Visits to outpatient clinics for influenza-like illness were down.