Today in Pictures: April 20

A woman holds a baby in a canoe as Texas Guardsmen arrive to assist after flooding in Brookshire, Texas, on April 20, 2016.

Gallery: Houston Paralyzed By Heavy Rains, Flash Floods

A rebel-fighter monitors the sky holding a FN-6 man-portable air-defense system in the Syrian village of Teir Maalah, on the northern outskirts of Homs.

Kenya Wildlife Service rangers stack elephant tusks, part of an estimated 105 tonnes of confiscated ivory to be set ablaze, on a pyre at Nairobi National Park near Nairobi, Kenya.

Greek actress Katerina Lehou, playing the role of High Priestess, lights a torch from the sun's rays reflected in a parabolic mirror during the dress rehearsal for the Olympic flame lighting ceremony for the Rio 2016 Olympic Games at the site of ancient Olympia in Greece.

Neighbors Carlos Bardales, left, and Cesar Filay, share a mattress as they sleep outside their collapsed homes damaged by a 7.8-magnitude earthquake, in Manta, Ecuador. Ecuadoreans began burying loved ones felled by the country's deadliest earthquake in decades, while hopes faded that more survivors will be found.

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

A gymnast takes part in an open training session for the rhythmic gymnastics test event at the Rio Olympic Arena in Rio de Janeiro, Brazil.

Camels are seen during an off-road mapping recognition exercise ahead of the Silk Way Rally 2016 in China's Gobi desert. The 2016 Silk Way Rally takes place in July and will see competitors race from Moscow's Red Square to the Chinese capital Beijing.