Washington - US President Barack Obama called the video of an Iranian woman shot to death during the country's violent demonstrations "heartbreaking."

"It's heartbreaking. And I think that anybody who sees it knows that there's something fundamentally unjust about that," Obama said during a press conference Tuesday at the White House.

Obama was commenting for the first time about Neda Agha Soltan, the Iranian woman whose shooting death was captured on film and made its way around the world over the internet. She has become the face of the protest.

Obama offered his strongest condemnation yet of the violence that has erupted since the June 12 presidential election, saying he was "appalled and outraged."

"We've seen courageous women stand up to the brutality and threats, and we've experienced the searing image of a woman bleeding to death on the streets," he said.(dpa)