Police are investigating at a house in Montgomery St, Hastings, after a 5-month-old baby was admitted to Hawke's Bay Hospital yesterday.
Five patrol cars arrived at the address about 11am and officers assessed the backyard from an adjacent property.
"The baby was admitted [yesterday] morning," said Detective Senior Sergeant Dave Greig, child-protection co-ordinator for Eastern Police District.
"Initially we had fears for the health of that baby.
"It appears the baby has suffered a head injury but it doesn't seem to be serious. The child is responsive, awake and feeding."