Some members of the MNRT became famous on August 29, 1963, by assaulting the Policlínico Bancario bank, stealing 14 million pesos (equivalent to 100,000 US dollars), a fortune at the time. Two employees were killed in the assault and three injured. This was the first armed political action carried on by an exclusively civil group in Argentina's history, making of the MNT-MNRT the "first urban guerrilla group in Argentina". However, the police finally tracked down the robbers and practically dismantled the MNRT. Most imprisoned activists were freed in May 1973, when center-left (and Peronist) president Héctor Cámpora issued a broad amnesty decree for all political prisoners.