A high-speed train derails in Spain rounding a curve with an 80 km/h (50 mph) speed limit at 190 km/h (120 mph), killing 78 passengers.
NASA launches the Interface Region Imaging Spectrograph, a space probe to observe the Sun.
At least 17 people are killed and 119 injured following several bombings in the Indian city of Hyderabad.
Fifty people are killed when Tatarstan Airlines Flight 363 crashes at Kazan Airport, Russia.
Over 42 people are killed by members of Boko Haram at the College of Agriculture in Nigeria.
Fifty-two people are killed in a bombing in Reyhanl?, Turkey.
Boston Marathon bombing suspect Tamerlan Tsarnaev is killed in a shootout with police. His brother Dzhokhar is later captured hiding in a boat inside a backyard in the suburb of Watertown.
A hot air balloon crashes near Luxor, Egypt, killing 19 people.
A bus falls from an elevated highway in the Philippines capital Manila killing at least 18 people with 20 injured.
Several small bombs explode outside a provincial office of the Communist Party of China.