The Tezno massacre (Croatian: Pokolj u Teznom) was the mass killing of POWs and civilians of the Independent State of Croatia (NDH) that took place in Tezno near Maribor, after the end of World War II in Yugoslavia. The killings were perpetrated by units of the Yugoslav Partisans in May 1945, in the Bleiburg repatriations. Summary executions began on 19 May when first prisoners arrived to the Tezno forest from nearby prison camps and continued until 26 May. Most of the bodies were buried in a several kilometers long antitank trench, which the Yugoslav authorities concealed and kept secret.