A human skull and pieces of bones were discovered yesterday in a forested area in Arouca.
CNC3 news understands that the discovery was made by a hunter who subsequently notified the police.
The skeleton was found in the same area where a male corpse was discovered last Thursday.
Human bones, believed to be that of a baby which died in March but was never buried, were discovered in La Brea on Thursday evening.
Officers from Homicide Region Three, acting on information, detained an 18-year-old woman of La Brea, who is believed to be the mother of the dead child.
The woman reportedly gave birth on February 2nd.
The birth was not registered.
The child was last seen alive on March 12th.
Police believe the child may have died around that time but never buried.