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
Performers gather for the free summer event takes place against beautiful backdrop of Dumfries and Galloway’s Morton Castle
Environment Agency and Annan District Salmon Fisheries Board crackdown on illegal fishing
Dumfries and Galloway community theatre company celebrates accolade as curtain falls on month-long run in Edinburgh