An indigenous person faces towards police during a protest on April 27 in Brasilia, Brazil.
Brazil, Latin America's largest nation, is home to numerous tribes, many of which live in the Amazon region. Clashes with ranchers, logging companies and other businesses operating near or on their lands are common. However, indigenous leaders say the violence has gotten worse in the last year amid Brazil's economic crisis.
They protested in front of Congress to lodge a long list of complaints. They claim the government of President Michel Temer is working to roll back protections in various parts of the Amazon and allowing ranchers and other big-money interests to steal their lands.
President Donald Trump looks out of a window in the Oval Office at the White House on April 27 in Washington.
Trump marks his 100 days in office on April 29.
New Washington State Patrol troopers bow their heads during a prayer at the Patrol's graduation ceremonies in the Capitol rotunda on April 26 in Olympia, Washington. The 49 graduates of the 107th Trooper Basic Training Class went through nearly six months of field and academy training.
A Venezuelan opposition activist sits near a burning barricade during a demonstration against President Nicolas Maduro on April 24 in Caracas.
Already 28 people have been killed, hundreds injured and more than 1,300 arrested in almost four weeks of street clashes between protesters, security forces and pro-government groups.
North Korean soldiers walk in front of bronze statues of North Korea's late founder Kim Il-sung and late leader Kim Jong Il on April 25, at Mansudae in Pyongyang.
A Brazilian military police officer holds a suspected drug dealer during an anti-drug operation in the Complexo do Alemao favela (shantytown) on April 25, in Rio de Janeiro, Brazil.
Runners cross Tower Bridge, the half-way point of the London Marathon, on April 23, in London.
Isabella Tolley, 8, holds a blanket with a picture of her father, New York City firefighter William Tolley, as his casket is loaded onto a truck at his funeral in Bethpage, N.Y. on April 27. Tolley, 42, died after falling five stories while battling a blaze in Queens last week. Investigators are still trying to determine what caused him to fall to his death.
The FDNY Foundation has set up an educational fund for Isabella.
Women watch as a young boiled egg vendor walks past on April, 25 in Damasak, Nigeria.
Men sit in a hot tub during freezing weather on the Stanserhorn mountain on April 27, in Nidwalden, Switzerland.
First lady Melania Trump attends a meeting with President Donald Trump and President Mauricio Macri of Argentina in the Oval Office of the White House on April 28 in Washington.
Seiichiro Nishimoto, CEO of Shelter Co., poses wearing a gas mask at a model room for the company's nuclear shelters in the basement of his house on April 26 in Osaka, Japan.
Sales of nuclear shelters and radiation-blocking air purifiers have surged in Japan in recent weeks as North Korea has pressed ahead with missile tests in defiance of U.N. sanctions.