Obama 'outraged' by attack in Germany

US president: "We will spare no effort in learning how this outrageous act took place"; 2 US soldiers killed as gunman opens fire in Frankfurt.

Germany US Attack 311 Reuters (photo credit: REUTERS)
Germany US Attack 311 Reuters
(photo credit: REUTERS)
WASHINGTON - US President Barack Obama said on Wednesday he was outraged by an attack on a US Army bus at Frankfurt airport in Germany in which two US airmen were killed and two others seriously wounded.
"I am saddened and I am outraged by this attack that took the lives of two Americans and wounded two others," he said during a surprise appearance in the White House briefing room.
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The Unites States will work with German authorities to investigate who was behind the attack, Obama said.
"We will spare no effort in learning how this outrageous act took place," he said.
Obama declined to take questions from journalists but said he would take questions from reporters on Thursday during a visit to the White House by Mexican President Felipe Calderon.
A gunman was in custody after the shooting of the troops in a US Army bus at Frankfurt airport. Boris Rhein, interior minister for the German state of Hesse, said the gunman was apparently a Kosovo national.
Security round the airport was tightened and an investigation was under way, Rhein said.
"Whether the incident was linked to terrorism I cannot say at this stage," he told journalists.
Chancellor Angela Merkel, speaking in Berlin, confirmed the deaths.
"We don't know the details but I would like to express how upset I am. We have to do everything we can to find out what happened," she told a joint news conference with Portuguese Prime Minister Jose Socrates.