Polish President Andrzej Duda and Prime Minister Mateusz Morawiecki offered their condolences on Wednesday over the Ukrainian plane crash in the Iranian capital city of Tehran on Wednesday.
Before becoming prime minister in 1991, Olszewski had won fame as a lawyer defending opposition activists during the communist period. For his stance he incurred the wrath of the state, which banned him from practicing law for two years.
Jan Olszewski, who served as Poland's prime minister in 1991-1992, has died, ruling party Law and Justice (PiS) senior member Antoni Macierewicz told PAP on Friday.
During observances marking the 74th anniversary of the outbreak of the Warsaw Uprising against the Nazi German occupying forces, Polish Prime Minister Mateusz Morawiecki said that "we would not be here without the WWII heroes, without the Warsaw insurgents."