SEABROOOK, N.H. (AP) – Ashes in four urns seized at an unregistered crematorium in February will probably never be identified, a prosecutor says.

They were among 12 urns seized during a raid at the Bayview Crematorium in which police also found a decomposing body in a broken cooler and two sets of remains being cremated in one oven. A criminal investigation is continuing, but no charges have been filed.

“We’re going to end up with four urns we cannot identify,” Rockingham County Attorney Jim Reams told The Eagle-Tribune of Lawrence, Mass. “The troopers have gone through all the paperwork, and they don’t think they’ll ever be able to identify them. So we will likely petition the court to bury them.”

Investigators don’t know whether the ashes are from whole bodies or tissues the crematorium disposed of for hospitals.

Meanwhile, health officials plan to go through death records to try to verify identifications of ashes received by families from Bayview before it was closed down. That was a common question from many of about 225 families who called a state hotline after the raid.

Dr. William Kassler, the state medical director, said he hopes a task force he leads will be able give the public “a level of reassurance” that they received the right remains.