The US Justice Department has opened a separate, federal, civil rights investigation into the death of Michael Brown, President Obama said. .
He said: "They are on the ground and along with the FBI they are devoting substantial resources to that investigation."
He added: "The US Attorney General will travel to meet with the FBI agents conducting the federal criminal investigation."
More top news
A "torpedo" filled with 165lbs of cocaine with a street value of £4.4 million has been found on an Irish beach close to a tourist hotspot.
A 76-year-old millionaire businesswoman has been taken from her car and kidnapped by an "organised gang".
A quiet and calm afternoon with many places staying dry