Today the winners of the prestigious 55th annual World Press Photo competition were announced in Amsterdam, and Samuel Aranda from Spain received the prize for World Press Photo of the Year 2011.

The winning photograph shows a woman caring for a wounded relative, inside a mosque used as a field hospital by demonstrators against the rule of President Ali Abdullah Saleh, during clashes in Sanaa, Yemen on October 15, 2011. Samuel Aranda was working in Yemen on assignment for The New York Times. He is represented by Corbis Images.

TIME photographer Yuri Kozyrev of Noor won first prize in the Spot News Singles category with his explosive picture of rebels leaping off a tank in Ras Lanuf, Libya.

A gallery of selected winners is above. You can see all the results here.

TIME salutes all of this year’s winners. Congratulations!

To see a multimedia about Jodi Bieber’s World Press Photo of the Year for TIME in 2011 click here.