Blast at a block of flats (in the background) in the Black Sea resort of Yevpatoria , Ukraine that left at least 22 people dead. Ukrainian President Viktor Yushchenko (pictured left) and his political rival, Prime Minister Yulia Tymoshenko (not pictured), travelled in the same car to the site of the blast. President Yushchenko declared 26 December a national day of mourning.