As at least 46 people die in Bulgaria in the worst coach accident in Europe in a decade, we look at other such tragedies on the continent over the last 10 years.
At least 46 people, including 12 minors, die when a coach bound for the North Macedonian capital of Skopje from Istanbul bursts into flames in Bulgaria early Tuesday. Most of its passengers are reportedly from the country's Albanian minority.
PORTUGAL: Twenty-nine German tourists die when their coach goes off the road on its way to a restaurant on the mountainous island of Madeira on April 18.
RUSSIA: A bus plunges off a bridge into a frozen river in Siberia on December 1, killing 19 people.
TURKEY: Seventeen migrants being smuggled through Turkey die and 36 are injured when their bus bursts into flames after hitting a pole on March 29 near Kars in the east of the country. Most were Iranians, Afghans and Pakistanis.
BULGARIA: Twenty pilgrims die after their bus flips over in heavy rain north of Sofia on a trip to an Orthodox monastery on August 25.
GERMANY: Eighteen elderly tourists from Saxony die when their tour bus catches fire after a colliding with a truck in Bavaria on July 3.
ITALY: Sixteen people -- mostly Hungarian teenagers returning from a ski trip to France -- die on January 21 when their coach ignites after crashing near the northern city of Verona.
RUSSIA: Sixteen people die when a train slams into a broken down bus carrying mostly Uzbek passengers on a level crossing east of Moscow on October 6.
FRANCE: In the worst French road accident in three decades, 43 people die when a coach carrying a pensioners' club collides with a lorry and catches fire near Puisseguin in southwest of the country on October 23.
TURKEY: A tanker carrying liquefied petroleum gas (LPG) overturns and explodes on a highway in the southeast on July 22, killing 26 people in two passing buses that were engulfed in flames.
Twenty-one people die in central Turkey in January 23 when their bus overturns on icy roads at night.
SWITZERLAND: Twenty-eight people, including 22 children, die in a crash in Sierre, southern Switzerland, as they return to Belgium from a skiing holiday on March 13.
TURKEY: Twenty-five people, mainly students, are killed when a truck loaded with bricks collides with a bus near Salat, a village in the southeastern Diyarbakir province on December 21.