Tens of thousands of protesters marched in Warsaw on Saturday to protest deeply unpopular pension reforms that will raise the retirement age for men and women to 67, dpa reported.
Protesters blew horns, waved red and white Polish flags and carried signs saying, "We don't want to work until death."
Local media estimated tens of thousands had shown up for the march organized by right-wing opposition party Law and Justice and the Solidarity labour union. The protesters marched down one of Warsaw's most elegant streets to the Royal Castle square.
"We will prevail because Poland has woken up," opposition leader Jaroslaw Kaczynski told the crowd ahead of the march.
The pension reform will raise the retirement age gradually from the current 65 years for men and 60 for women to 67 for both, starting next year.
Prime Minister Donald Tusk had said the reform was necessary to secure pensions for future retirees. Studies have forecast a shortage of workers by 2040, when most of the country's population will be over 50.