The Week in Pictures: August 14 - 21

Lightning strikes in Ferguson, drought devastates California, Ebola isolates, Big Ben gets a cleaning, the pope visits South Korea and more.

Protesters march in the street as lightning flashes in the distance in Ferguson, Mo. on Aug. 20. The Aug. 9 shooting of Michael Brown by a Ferguson police officer has sparked nightly clashes between protesters and police.

Jeff Roberson / AP

Adel (right) and Mohammed spend the afternoon in the only room of their home that was not totally destroyed when an Israeli missile struck their apartment building during fighting between Israel and Hamas in the north of the Gaza Strip, on Aug. 16. Their families live in a UN-run school where they sought refuge but the men sleep overnight in the shell of the building to watch over what little is left.

Roberto Schmidt / AFP

Indian youth make a human pyramid to reach and break the “Dahi Handi,” an earthen pot filled with yogurt, as they celebrate Janamashtami in Mumbai, India, on Aug. 18. Janmashtami is the festival that marks the birth of Hindu god Krishna.

Rafiq Maqbool / AP

A man is doused with milk and sprayed with mist after being hit by an eye irritant from security forces trying to disperse demonstrators protesting against the shooting of unarmed black teen Michael Brown in Ferguson, Mo. on Aug. 20. Police in riot gear ordered dozens of lingering demonstrators in Ferguson to disperse late on Tuesday and charged into the crowd to make arrests as relative calm dissolved.

• Gallery: Powerful Scenes from Two Weeks of Unrest in Ferguson

Adrees Latif / X90022

A section of Lake Oroville is nearly dry on Aug. 19 in Oroville, Calif. As the severe drought in California continues for a third straight year, water levels in the state's lakes and reservoirs is reaching historic lows. Lake Oroville is currently at 32 percent of its capacity.

Justin Sullivan / Getty Images North America

A health worker disinfects a corpse after the man died in a classroom now used as an Ebola isolation ward on Aug. 15 in Monrovia, Liberia. People suspected of contracting the Ebola virus are being sent by health workers to the center, a closed primary school originally built by USAID. The Ebola epidemic has killed more than 1,000 people in four West African countries.

• Gallery: Liberia Fights Deadly War Against Ebola

John Moore / Getty Images Europe

A Liberian Army soldier, part of the Ebola Task Force, beats a local resident while enforcing a quarantine on the West Point slum on Aug. 20, in Monrovia, Liberia. The government ordered the quarantine of West Point, a congested seaside slum of 75,000, in an effort to stop the spread of the virus in the capital city.

Liberian Soldiers Seal Slum to Halt Ebola

John Moore / Getty Images Europe

People walk past a very sick Saah Exco, 10, in a back alley of the West Point slum on Aug. 19, in Monrovia, Liberia. The boy was one of the patients that was pulled out of a holding center for suspected Ebola patients when the facility was overrun by a mob on Saturday. A local clinic Tuesday refused to treat the boy, according to residents, because of the danger of infection.

• Gallery: Liberian Child Suspected of Contracting Ebola Clings to Life

John Moore / Getty Images Europe

Palestinians perform Friday prayers outside a mosque which witnesses said was destroyed by an Israel air strike, on the second day of a five-day ceasefire in Gaza City on Aug. 15.

Mohammed Salem / X01571

Bangladeshi boatmen navigate through dense water hyacinths over the Buriganga river in Dhaka on Aug. 21. Water hyacinths, an invasive plant species, can quickly cover huge swathes of water bodies which hampers the movements of boats.

Munir Uz Zaman / AFP

A mother is embraced by a pro-Russian rebel as she grieves over the body of her daughter, who died next to two other people after reported shelling by Ukrainian troops near a railway in Makiivka, about 10 miles east of Donetsk, in eastern Ukraine, on Aug. 19. Civilians have increasingly become trapped in the midst of fighting between the pro-Russian rebels and the Ukrainian military. Fighting in Ukrainian villages near the Russian border has left at least 2,086 dead and more than 5,000 wounded, according to the United Nations’ human rights office.

Mauricio Lima / NYTNS

People stand inside a makeshift bomb shelter in the town of Makiyivka, Ukraine on Aug. 19. Ukraine said that fighting had erupted in the heart of the major rebel stronghold of Lugansk as government forces pressed on with a punishing offensive to win back the war-torn east.

Dimitar Dilkoff / AFP

Peasants try to lift a horse dying from hunger at the El Rosario farm in San Francisco Libre, Nicaragua on Aug. 19. According to a recent report by the Famine Early Warning Systems Network, low rainfall linked to the El Nino weather phenomenon has led to drought in parts of Central America, causing widespread damage to crops, shortages and rising prices of food, and worsening hunger among the region's poor.

Oswaldo Rivas / X00871

Technicians carry out cleaning and maintenance work on one of the faces of the Great Clock atop the landmark Elizabeth Tower that houses Big Ben, attached to the Houses of Parliament, in London, on Aug. 19. A team of abseilers is busy this week cleaning up the clock faces at the Houses of Parliament in London. The specialist technicians descended the most famous London landmark by rope to clean and inspect the four clock faces. The clock on the Elizabeth Tower was last cleaned in 2010 and besides cleaning up any dirt that has accumulated since then, the experts will conduct a photographic survey to check the dials for damage.

Ben Stansall / AFP

Faithful greet Pope Francis upon his arrival for the 6th Asian Youth Day on Aug. 17, in Haemi, South Korea. The visit was the third trip abroad for the pope following Brazil and the Middle East.

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Handout / Getty Images AsiaPac