Mateusz Morawiecki, the Polish prime minister, has asked the country's security services to prepare a comprehensive report on three Spanish divers who were rescued from the sea near the port of Gdansk over the weekend.
There are no pollutants in the samples taken from drinking water intakes near the River Odra where masses of dead fish have been found, the local authorities in north-western Poland have told PAP.
Elżbieta and Italian friend Andrea had been cycling along the beach in the seaside resort of Łeba when they spotted the clear glass bottle with a floral print and the note inside. She later said: “When I started reading this my heart almost broke. I couldn't help but cry.”
Striking a chord with the public for their humorous but also tender depiction of coastal life, the series reveal a Poland that is instantly recognizable to millions of people.