AmedicalhelicoptercrashedineasternArkansasonSunday,killingthreecrewmembersonboard,authoritiessaid.Theairambulancewasnottransportingpatientsatthetimeofthecrash,a
U.S. President Barack Obama visited a tornado-ravaged town in the state of Arkansas Wednesday and pledged the federal government will help those devastated families to rebuild their homes, U.S. media reported.
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