Polish high school students excelled at the 66th International Mathematical Olympiad held in Sunshine Coast, Australia: they claimed three gold medals and three silver medals, resulting in an overall fourth place among the 110 countries taking part

LEGO block fans Zuzanna ‘Fanka Klocków’ and Michał ‘Artoozy Builds’ presented a set recreating a retro pharmacy with its proprietor, Ignacy Łukasiewicz, inventor of the kerosene lamp at Brick it Back, a LEGO blocks festival in Jasło

An unspecified number of young seal pups have been found dead in a number of Poland’s northwest beaches, discovered by walkers; local WWF said foul play hasn't been ruled out but the phenomenon was most likely caused by recent storms and strong winds

National election body is investigating potential vote counting irregularities following this month’s presidential runoff that gave a razor-thin victory to the conservative Law and Justice party for less than 400.000 votes in nearly 21 million votes cast

First round of presidential election ends with Centrist Trzaskowski narrowingly leading with 31,3% of the vote on Karol Nawrocki, backed by the populist right, gaining 29,5 %; runoff is scheduled for on 1 June 1