Authorities in Maryland say they've arrested the owners of 310 dogs in an alleged puppy mill, many of the animals with matted fur and covered in feces.

Local media outlets report that 60-year-old Robert Murphy and 67-year-old Susan Murphy were arrested Monday on 84 counts of animal cruelty.

Wicomico County Sheriff Mike Lewis says the dogs — mostly Pomeranians — were seized after a kennel check April 6. Authorities found 166 dogs in a house, and 144 more in three other buildings on the property.

Lewis says the scene was "disturbing."

Of the 310 dogs, Lewis says only one had to be euthanized, and 27 are receiving veterinary care at the Humane Society. The rest have been adopted.

It's unclear if the Murphys have lawyers.