Poland’s varied retirement age for men and women is under scrutiny by top European Union officials, who consider this practice to be a form of gender discrimination.

Europe’s gender equality and labour commissioners sent a letter to Poland’s labour and social policy minister.

According to the Polish Press Agency (PAP), the European Commission has launched procedures against Poland breaking the EU’s equal rights laws. The report cited an anonymous source in the European Commission.

In 2016, the Polish government overturned a 2012 decision to raise the statutory retirement age to 67, up from 65 for men and 60 for women.

Radio Poland online quoted the European Commission’s spokeswoman Mina Andreeva as saying that the European Union has rules which aim to implement gender equality, which extends to social security and the retirement age.