A monsoon lightning storm strikes over the Mandalay Bay Resorts and Casino in Las Vegas, Nevada. Monsoon storms are forecast for the rest of the week in Nevada and neighbouring Arizona.
China Stinger Network/Reuters
A streak of lightning is seen above the skyline of Nanning during a thunderstorm in Guangxi Zhuang, China
Lightning strikes in Port-au-Prince, the capital of Haiti
A thunderstorm in Port-au-Prince, the capital of Haiti, on Tuesday Read more
Lightning streaks across the sky of Montevideo, over the Legislative Palace, seat of the government in Uruguay, during a thunderstorm
Lightning is seen above buildings during a storm in central Shanghai on Wednesday evening Read more
Lightning strikes in central London behind the London Eye, which is coloured red, white and blue to mark the birth of a baby boy to the Duke and Duchess of Cambridge at St Mary’s Hospital on Monday Read more
Lightning strikes above the Mandalay Bay and Luxor casinos on the Las Vegas Strip as a thunderstorm moves through Las Vegas, Nevada in the US. Read more
Santa Rosa Press/Kent Porter/AP
Lightning strikes above the Geysers area of northern Sonoma County near Geyserville, California Read more
Scott Olson/Getty Images
Lightning strikes the Willis Tower (formerly Sears Tower) on early Thursday morning in Chicago, Illinois. A massive storm system with heavy rain, high winds, hail and possible tornadoes is expected to move into Illinois and much of the central part of the Midwest.