A cache of 5,000 pounds of illegal fireworks seized at a South Los Angeles home exploded and destroyed an armored Los Angeles Police Department tractor-trailer, damaging nearby homes and cars and causing injuries, authorities said. Ringo H.W. Chiu/AP hide caption
Forensic investigators search for evidence after an explosion on Wednesday at a coronavirus testing center in the town of Bovenkarpsel, The Netherlands. Aris Oikonomou/AFP via Getty Images hide caption
Koko Kondo at Hiroshima Peace Memorial Museum in Hiroshima, Japan, on Aug. 5. Kondo was determined to get revenge on the person who dropped the atomic bomb on her city. Then, she met him. Eugene Hoshiko/AP hide caption
Flights from London City Airport, shown here last October, were closed Monday due to an unexploded World War II bomb. Daniel Leal-Olivas/AFP/Getty Images hide caption
Survivors of the first atomic bomb ever used in warfare are seen as they await emergency medical treatment in Hiroshima, Japan, in 1945. AP hide caption
President Obama said Thursday that he's taking "very seriously" the possibility that a bomb brought down a Russian plane in Egypt on Saturday, killing all aboard. Evan Vucci/AP hide caption