warsaw (ap) | Polish investigators July 26 closed a probe into the murder of 13 Jews by Poles who discovered them hiding from the Nazis, saying they had uncovered no new information in the case.

The investigation was opened after the victims’ remains were discovered in a forest in central Poland in September 2002.

Although three Poles were already convicted in the 1950s of the murders, investigators had hoped the discovery of the remains would shed more light on the case but could not come up with any more details.

“There was no basis for continuing the investigation since we didn’t find any new evidence and since we couldn’t find any new people connected with it,” said Anna Galkiewicz, a prosecutor working for the Polish National Remembrance Institute.

“According to our information, everyone involved is now dead,” she said.

The victims were shot and killed in January 1943 by three Poles who discovered them hiding in an earth hut in the forest near the village of Czerniewice, some 100 kilometers south of Warsaw.

Two of the perpetrators received death sentences that were later commuted to 15 years in prison, while the third received a 15-year sentence.

Some 3 million Polish Jews were killed in the Holocaust. About 20,000 Jews live in Poland today.