Inspector Richard Quinn, from Cumbria Police said:
"The dog is currently in our care. Because a child is involved we need the full facts before we can determine what should be done with it.
"At this stage we haven't had an opportunity to interview the parents but we believe this may have been a terrible accident."
More top news
Speaking to ITV Border, Lord Sutherland of Houndwood criticised the Higher Education Governance (Scotland Bill).
There is an urgent appeal for volunteer drivers to help transport the donated goods to refugees in Calais
Poppy bird feeders are flying off the shelves in Dumfries. They're being sold to raise money for the Royal British Legion.