Before the Second World War, about 800 people lived in Puzniki, with a predominantly Polish population.

During the Second World War, the inhabitants were plagued by attacks from Ukrainian nationalists. The biggest attack by members of the Ukrainian Insurgent Army (UPA) on the village took place on the night of 12-13 February 1945. Despite the existence of self-defence and guards posted in the village, the attack took the inhabitants by surprise. For this reason, there was no coordinated defence. At least several dozen people were killed during the attack (some accounts mention about 100 names of victims).

The day after the attack, some of the bodies were taken to the old cemetery, where they were deposited in two large pits, a remnant of the passage of the front in 1944. The funeral took place without any ceremony.

For many years after the end of the Second World War, the graves were not marked in any way. At the turn of the twentieth century, on the initiative of Mr Jasinski (a descendant of the Poles murdered here), a metal cross with a metal plaque with an inscription in Ukrainian [translated into Polish: "This cross was erected in the cemetery of the former village of Puźniki to the Poles who rest here. Author Jasinski"] and a symbolic grave dedicated to the murdered members of the Jasinski family with the inscription: "Ś.P. Jasińscy - Piotr, Marian, Emilia, Ludwika".

By the former main road leading through the village is the so-called Borkowski Ditch. This is the second burial place of the victims of the Ukrainian Insurgent Army's attack. There was a cross there, but in 2007 all that was left of it was a wooden structure lying in the bushes.

In 2023 search and sounding works took place in the cemetery in Puzniki, which ended with finding a mass grave of Ukrainian Insurgent Army's victims.