Lightning during a storm under the Memorial Center in Potocari, near Srebrenica Bosnia.

Lightning bolts strike around the Puyehue-Cordon Caulle volcanic chain near Osorno city in Chile.

Lightning streaks across the sky as lava flows from a volcano in Eyjafjallajokul, Iceland.

Volcanic lightning or a dirty thunderstorm is seen above Shinmoedake peak as it erupts, between Miyazaki and Kagoshima prefectures, in Japan.

Lightning flashes around the ash plume above the Puyehue-Cordon Caulle volcano chain near Entrelagos, Chile.

Lightning strikes as Mount Merapi volcano erupts spewing out towering clouds of hot gas and debris, as seen from Ketep village in Magelang, Indonesia's Central Java province.

Lightning illuminates the sky offshore Beirut.

Lightnings strike over buildings during a thunderstorm in Berlin.

Lightning strikes behind the Mandalay Bay and the Luxor hotel casinos as a thunderstorm passes through Las Vegas, Nevada.

A sunflower field is seen in stormy weather near Donzere, southern France.

Lightning strikes the CN Tower during a thunderstorm in Toronto.

Lightning flashes behind Memorial Stadium at the University of Oklahoma.

Lightning illuminates the sky during a thunderstorm over the Swiss Federal Palace in Bern.

Lightning strikes over buildings during a thunderstorm in Belgrade.