Andrew Breitbart, conservative pundit, dies

Andrew Breitbart has died, according to the conservative blogger's website.

He was 43. Few details were available.

"With a terrible feeling of pain and loss we announce the passing of Andrew Breitbart," says a note on www.bigjournalism.com. "Andrew passed away unexpectedly from natural causes shortly after midnight this morning in Los Angeles."

Several Breitbart-affiliated websites made the announcement this morning that he died of natural causes in Los Angeles in the early morning hours.

His death was confirmed by Breitbart.com editor-in-chief Joel Pollak, who says he was at the hospital.

And CNN is reporting that Breitbart's attorney also confirmed the death.

Breitbart was an outspoken critic of the mainstream media. His efforts were behind controversial investigations that led to the resignations of former Rep. Anthony Weiner and former Agriculture Department official Shirley Sherrod.

He was lionized by his fans for his efforts at exposing government corruption and media bias.

According to his website, Breitbart recently wrote a new conclusion to his book, Righteous Indignation:

"I love my job. I love fighting for what I believe in. I love having fun while doing it. I love reporting stories that the Complex refuses to report. I love fighting back, I love finding allies, and-famously-I enjoy making enemies."

The AP contributed to this report