 Flueraș remained opposed to the main Social Democratic Party (PSD), and accused the growing Soviet influence which had found its advocates inside the latter political group (the wing led by Lothar Rădăceanu and Ștefan Voitec).He also allegedly refused office in the Communist-backed Petru Groza government, and rallied with Constantin Titel Petrescu's "Independent Social Democrats", which had split with the PSD over the issue of running common lists with the communists.He was arrested in late 1948, presented as a dissident PSD member, tried for "having collaborated with a fascist regime", and held in various prisons inside the country, where he was routinely tortured, being ultimately murdered by two fellow inmates, Constantin Juberian and Ștefan Rek in Gherla prison (according to one testimony, he was beaten to death with sandbags).