White House Press Secretary Josh Earnest said that Obama called MSF chief Joanne Liu 'to apologise and express his condolences' over the weekend attack.
"President Obama spoke by telephone with Doctors Without Borders International President Dr Joanne Liu, to apologise and express his condolences for the MSF staff and patients who were killed and injured when a US military air strike mistakenly struck an MSF field hospital in Kunduz, Afghanistan over the weekend," Earnest told reporters.
He said Obama assured her that there would be a thorough and objective accounting of the facts. Obama told her that the US, if necessary, would make changes that would make tragedies like this one less likely.
MSF, which has condemned the attack as a war crime, has demanded an international probe into the attack that killed at least 22 people, including women and children, after reports said NATO's top regional commander thought US forces broke rules of engagement.
The medical charity's demand came a day after General John Campbell, the top US and NATO commander in Afghanistan, said the 'hospital was mistakenly struck.
MSF has brushed aside Campbell's explanation, saying 'a mistake is not an answer for us.'

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