Week in pictures: 21-28 April 2017 - BBC News

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RODRIGO GARRIDO / REUTERS
A series of fast-spreading fires, mostly in Chile's central region, is being fanned by strong winds, high temperatures and a prolonged drought.




ISSEI KATO / REUTERS
Russia's Anastasia Pavlyuchenkova signs autographs after winning her Women's singles fourth round tennis match against Svetlana Kuznetsova at the Australian Open.




ULISES RUIZ BASURTO / REUTERS
Mexico's Colima volcano has seen an increase in activity since October last year.




SOE ZEYA / REUTERS
British Foreign Secretary Boris Johnson prepares to strike a bell during a visit to the Shwedagon Pagoda in Yangon, Myanmar, also known as Burma.




ARUN SANKARARUN SANKAR / AFP
Indian school students formed the national flag during an event to mark Republic Day in Chennai.




MARKO DJURICA / REUTERS
Migrants in the Serbian capital, Belgrade, protested outside a derelict customs warehouse. They want Europe to open its borders.




JOSE LUIS GONZALEZ / REUTERS
US President Donald Trump issued an executive order for an "impassable physical barrier" to be built along the US border with Mexico. Building a 2,000-mile barrier along the Mexican border was one of Mr Trump's key pledges in the election campaign. Here a child plays near to a newly-built section of the current wall which covers part of the border.




JACK TAYLOR / GETTY IMAGES
A red deer at Richmond Park in London is seen as thick fog and temperatures below freezing swept across parts of the UK.




ISHARA S KODIKARAISHARA / AFP
A Sri Lankan health worker sprays a neighbourhood with a fog used to ward off mosquitoes in Biyagama on the outskirts of Colombo. Mosquito-related dengue cases have risen sharply in and around the capital.