Police say the remains of a woman who fell into a sinkhole have been recovered four days after she went missing while searching for her cat.

Digging crews are resuming work in the effort to locate a woman who authorities fear died after falling into a sinkhole above an abandoned Pennsylvania coal mine.

Swaths of Pennsylvania and many other states are honeycombed with old, unstable mines that can cause the earth to suddenly give way.

The search for a woman who is believed to have fallen into a sinkhole in western Pennsylvania has become a recovery effort after two treacherous days of digging through mud and rock produced no signs of life.

Authorities fear a woman in western Pennsylvania who disappeared while looking for her cat may have been swallowed by a sinkhole caused by mine subsidence.