Griner Grove
At the beginning of October all the inmates of the ghetto -- mainly women with children and elderly people -- were collected near the house of the Miler family inside the ghetto. They had to stay there, under the open sky and given only water, for a week, guarded by Ukrainian auxiliary police. Jewish young people who were working outside the ghetto were taken to the ghetto as well.
On October 8, 1942, in the morning, on the order of Amorgstein, the commandant of the town of Dubno, a team of Security Police and SD from Równe, assisted by members of the Gendarmerie (German rural order police) and Ukrainian auxiliary police came to the collection point on trucks. They loaded about 600 Jews onto them and took them to the forest, near the Griner grove, where local residents had dug a pit. Upon their arrival at the killing site, the victims were shot to death with machine-guns and pistols by an SD murder squad and their bodies were thrown into the pit and covered with a thin layer of earth.
More information: Yad Vashem
Demidówka Area
According to the ChGK report, apparently in late October of 1942, about 50 Jews, mainly young people who had been caught hiding in the ghetto, were tortured; the girls were raped and then all of them were shot to death in Demidówka by members of the Ukrainian auxiliary police, headed by Ivan Kovalchuk.
More information: Yad Vashem