The Pulitzers, which date back to 1917, began allowing online-only publications to compete three years ago.

David Wood of The Huffington Post won the national reporting prize "for his riveting exploration of the physical and emotional challenges "facing American soldiers wounded in Iraq and Afghanistan, the committee said.

Politico's Matt Wuerker won the award for editorial cartooning, satirizing the partisan conflict in Washington in 2011.

The public service award went to The Philadelphia Inquirer "for its exploration of pervasive violence in the city's schools".

The prize for breaking news went to the staff of the Tuscaloosa News for the Alabama paper's coverage, using real-time updates, to help locate missing people after a deadly tornado, which forced the newspaper to publish at another site.

The AP was recognized for reporting on the New York Police Department's clandestine spying program, which monitored daily life in Muslim communities.

The Pulitzer Board, made up of journalists from around the country and representatives of Columbia University, also bestows awards for literature, drama and music.

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