Press Secretary Josh Earnest did not say if Obama has been presented with military options.
The move is a rare one for a southern politician in a tough reelection battle.
Obama's remarks came shortly after the administration verified that a video showing the beheading of U.S. journalist James Foley is authentic.
Attorney General Eric Holder is scheduled to brief President Obama Monday afternoon.
When you're president the office - staff, equipment, everything - follows you. Everywhere.
The White House said Obama has been updated on the situation in Ferguson and will be briefed again Thursday morning.
Clinton swept onto this island where President Obama is vacationing
They will attend a party at the home of former Bill Clinton adviser Vernon Jordan.
Obama made the remarks at a Democratic fundraiser on Martha's Vineyard
The president urged the man tapped to be the next prime minister to move ahead quickly.