The three boys and a girl were born prematurely and weigh from 1.4 to 1.6 kg, which, according to doctors, is the correct weight for babies born in the 32nd week of pregnancy.
The quadruplets, named Mikołaj, Marcel, Milan and Malwina, are said to be doing well, but have to remain in incubators for some time.
Photos: PAP/Artur Reszko
The happy parents, Urszula and Szymon, already have a two-and-a-half-year-old daughter. They live in the northeastern city of Suwałki.
(mk/gs)