The 29-year-old woman was questioned yesterday along with a 32-year-old man after police and paramedics were called to the High Street home shortly before 11am.

A police spokesman said the pair were later released, pending further investigations.

It is unknown what the man's relationship was to the child.

The 16-month-old was transferred from Bendigo hospital to The Royal Children's Hospital overnight.

Police were seen leaving the house with evidence bags about 1.30pm yesterday.

The area was cordoned off with police tape.

The spokesman said investigations are continuing into the cause of the child's injuries and police are considering all circumstances.

Earlier

POLICE are investigating how a 16-month-old boy sustained serious injuries at a Kangaroo Flat home yesterday.

Police and paramedics were called to the house in High Street shortly before 11am.

A police spokeswoman said the 16-month-old boy had sustained serious injuries, but said police could not reveal what they were as investigations were ongoing.

“Police are investigating the circumstances surrounding the incident,” she said.

An Ambulance Victoria spokeswoman said the toddler was taken to Bendigo Hospital for treatment.

The spokeswoman said the incident had been declared a “medical emergency” as opposed to an “accident” by responding paramedics.

Police were seen leaving a house in Kangaroo Flat with evidence bags about 1.30pm yesterday.

The area was cordoned off with police tape.

Detectives later spoke with a woman outside the home.

A police spokesman declined to confirm whether the woman was still part of the inquiry or if she would be facing any charges.

The woman’s relationship to the 16-month-old boy was unknown.

A Bendigo Health spokesman last night said the toddler was in a stable condition.

Investigations are continuing into the cause of his injuries.

It is unknown whether police are treating the incident as suspicious.