The Week in Pictures: April 14 - 21

Earthquakes rock Ecuador and Japan, a glacier race, a kiss for the pope and more of the week's best pictures.

Justin Nelzen, in red vest, joins others as they work to rescue up to 70 horses near Humble along Cypress Creek, on April 18, 2016, in Houston. More than a foot of rain fell Monday in parts of Houston, submerging scores of subdivisions and several major interstate highways, forcing the closure of schools and knocking out power to thousands of residents who were urged to shelter in place.

PHOTOS: Houston Paralyzed By Heavy Rains, Flash Floods 

Police stand guard as a polio vaccination team works in Karachi, Pakistan, on April 21, the day after seven policemen who were guarding a polio vaccination team were killed in the city by unknown gunmen.

Pakistan and Afghanistan are the last two countries where polio is still endemic. Though new polio cases dropped to a nine-year low in 2015, attacks by Islamist militants against health workers and police guarding them remained a challenge for a U.N.-funded vaccination campaign. Only 51 children were found infected with the crippling virus in 2015, compared to 306 a year earlier.


Maria Victoria, 89, is comforted by her daughter Mariana in Estancia Las Palmas, Ecuador, on April 19. Victoria was injured when a column fell on her after a 7.8-magnitude earthquake collapsed her home. The strongest earthquake to hit Ecuador in decades flattened buildings and buckled highways along its Pacific coast, sending the Andean nation into a state of emergency.

PHOTOS: Strongest Earthquake Since 1979 Hits Ecuador, Killing Over 200 

Rodrigo Abd / AP
Serbian Radical Party supporters light torches during a pre-election rally in Novi Sad, Serbia, on April 20. Serbian voters will go to the polls April 24 in a snap election that will test Prime Minister Aleksandar Vucic's proclaimed bid to lead the Balkan country toward European Union integration. Darko Vojinovic / AP
Paul Bolton and Philipp Scholz compete on the first day of the Red Bull Minas Riders endurance race in Belo Horizonte, Brazil, on April 17. Claudius Vasilescu / Red Bull

A picture made available on April 20 shows Spanish soldiers of the 7th Airborne Light Infantry Brigade 'Galicia' fire a howitzer Light Gun L118 during maneuvers with other units from the Training Center 'San Gregorio' in preparation for NATO's Very High Readiness Joint Task Force (VJTF) in Zargoza, Spain, on April 19.


Frankie Dettori celebrates after riding So Mi Dar to win The Investec Derby Trial at the Epsom racecourse on April 20 in Epsom, England.

Alan Crowhurst / Getty Images
Competitors climb in front of the Matterhorn as they start the 20th edition of the Glacier Patrol race in Zermatt, Switzerland, April 19. In the race, highly-experienced hiker-skiers trek across the Haute Route along the Swiss-Italian border from Zermatt to Verbier, covering 33 miles by foot and ski. JEAN-CHRISTOPHE BOTT / EPA

A man climbs out of a crack after taking some pictures of a section of highway that collapsed in Chacras, Ecuador, on April 19. The strongest earthquake to hit Ecuador in decades flattened buildings and buckled highways along its Pacific coast, sending the Andean nation into a state of emergency.

Rodrigo Abd / AP

Britain's Prince William and his wife Catherine, the Duchess of Cambridge, pose as they sit in front of the Taj Mahal in Agra, India, on April 16. William and Kate sat side by side on the same bench where his late mother was photographed on a solitary visit in 1992.

Money Sharma / Pool via Reuters

A firefighter responds to a fire at an auto wrecking yard in the Sun Valley section of Los Angeles as a huge plume of thick, black smoke rises over them on April 17. The fire department said the blaze at Self Service Auto Recycler in Sun Valley engulfed at least 15 vehicles.

Richard Vogel / AP

Charles Ellis looks at his neighbor's car that was engulfed when the roadway collapsed due to heavy rains on April 18. Widespread storms producing heavy amounts of rainfall hammered central Texas communities like La Grange, resulting in widespread flooding and numerous road closures.

Ralph Barrera / Austin American-Statesman via AP
A child kisses the hand of Pope Francis during a visit at the Moria refugee camp on the island of Lesbos, Greece. Pope Francis implored Europe on Saturday to respond to the migrant crisis on its shores "in a way that is worthy of our common humanity," during an emotional and provocative trip to Greece. Andrea Bonetti / Greek Prime Minister's Office via AP

A resident stands in front of a damaged house in Mashiki, Kumamoto prefecture, southern Japan, on April 16. A powerful earthquake struck southern Japan early Saturday, barely 24 hours after a smaller quake hit the same region.

The Week in Pictures: April 7 - 14 

Naoya Osato / Kyodo News via AP