Apr 14th, 2009 - BBC NEWS
Poland has begun three days of mourning for the 21 people killed on Monday by a fire in a hostel for homeless families.
Another 20 were injured in the blaze, the country's deadliest for 29 years, which broke out during the night in the north-western town of Kamien Pomorski.
Witnesses said residents jumped from windows, some holding children.
Both President Lech Kaczynski and Prime Minister Donald Tusk have openly questioned whether the hostel was safe and complied with fire regulations.
