Eight killed in three house fires in Poland

At least eight people have died in house fires in
Poland over the weekend, according to Polish news agency PAP.
Two charred bodies had been found in a burnt-out flat in an
apartment block in Kalisz, western Poland, reports said, according to DPA.
Three people died in a fire in a garden shed near Pruszkov, west
of Warsaw.
On Saturday, three people died in flames in the loft apartment
of a four-level apartment building in Lodz, while two others suffered
smoke poisoning.
The Polish fire brigade believe the fires might have been caused
by the use of additional heaters, which overloaded the electricity
network.
Night temperatures in Poland have been way below zero degrees
Celsius for the past few days.