Meanwhile , the ghetto in Grodno was razed by the Germans with all of its 29,000 Jews deported in Holocaust trains .
Meanwhile , the ghetto in Grodno was exterminated in gas chambers of Auschwitz and Treblinka .
Meanwhile , the ghetto in Grodno was razed by the Germans with all of its 29,000 Jews deported in Holocaust trains , and exterminated in gas chambers of Auschwitz and Treblinka .