UXBRIDGE, Mass. — The group People for the Ethical Treatment of Animals is offering a $5,000 reward to help find the person who dumped a bag containing six live puppies into a Massachusetts river.

Uxbridge police say a kayaker found the week-old puppies in the Blackstone River on Sunday. They are all expected to survive.

The money is being offered as a reward for information that leads to an arrest and conviction. PETA Vice President Colleen O’Brien said Thursday that the incident demonstrates a “disturbing lack of empathy.”

Local animal control officers are currently looking after the puppies. They will be put up for adoption in a few weeks.

Police continue to investigate.