Thames Valley Police said no arrests have been manufactured and that investigators are doing the job to determine the breed of the canine.
The animal was put down by legislation enforcement on Tuesday night quickly after officers have been often called to a residence in Broadlands, Netherfield, Milton Keynes, by the ambulance assist.
The teenager, who has not nonetheless been formally found however has been named in experiences as Alice Stones, died on the scene.
The tip-of-terrace property remained taped off on Wednesday, with a forensic tent by the again once more yard and a uniformed officer and marked legislation enforcement van on the entrance of the residence.
Providing an replace, Superintendent Marc Tarbit reported: “The kid’s partner and youngsters are remaining supported by specifically certified officers and we would test with that their privateness is revered.
“An investigation is at the moment below strategy to totally have an understanding of the situations however we now really feel that this was a tragic, remoted incident and there was no menace to the broader group.
“Accordingly, no arrests have been made right now.
“I can be certain that the canine was a partner and youngsters pet and was set down by the police on the scene yesterday night.”
Mr Tarbit, regional policing area commander for Milton Keynes, mentioned the incident in a again yard backyard – through which no-a single else was harm – was clearly an individual which had “shocked and upset individuals” as he urged residents to converse to officers with any considerations or considerations.
He additionally requested the group to not speculate about what skilled occurred and often called for the woman’s household’s privateness to be extremely regarded.
Neighbor Rita Matthews, 36, defined she would see the newborn while going for walks her possess daughter to college and described the teenager as a “joyful minimal girl, actually joyful”.
Donna Fuller, a ward councillor for Woughton Local people Council, reported the situation has a “tight-knit neighborhood, predominantly households”.
She included there was “these a way of shock” and it was an “terrible downside”.
A vigil is being held at Grand Union Winery Church, Netherfield Campus, all through the street from the residence, at 7pm on Wednesday to “assist the local people to come back alongside each other and appeal to power from nearly each different”.
She added: “It can ship a sturdy idea to the household that we’re imagining of them.”
Floral tributes to the youngsters have piled up outdoors the residence, with 1 of them wanting by: “Alice!! Fly greater with the angels minor one. The whole group will miss your smile. Our emotions are with the entire partner and youngsters, notably her mum.”
Police defined there can be an amplified existence of officers within the area with “reassurance patrols all by early shifts and late shifts”.