Facebook video of dog swung from lead in Stevenage investigated
A group filmed swinging a dog by the lead around its neck are being sought by police.
The video, which was posted on Facebook, is being investigated as a "matter of urgency".
The incident happened on Thursday at about 18:00 BST in Julians Road, near the junction with Fairview Road, in Stevenage.
The Chihuahua had been taken for a walk by the group before it was returned to its owner.
PC Lindsey Cox said: "No animal deserves to be treated in this way and we are taking this matter extremely seriously.
"This is being treated at this stage as an incident of causing unnecessary suffering to an animal."
Police said the owner of the dog had no idea of what had happened until seeing the video on Facebook.
RSPCA Inspector Stephen Reeves said the animal protection charity was "very concerned about this footage of someone swinging a Chihuahua around on a lead".
"This would likely have caused the animal great distress as well as potentially serious injury.
"We urge people to remember that they have a legal and moral responsibility to ensure animals in their care are properly looked after, free of suffering, with all their needs catered for."
Anybody who saw what happened is asked to contact police.