VINEYARD HAVEN, Mass. -- The White House said early Thursday that President Obama has been briefed on clashes that again erupted between police and protesters in Ferguson, Mo., days after police shot and killed an unarmed black teenager.

The protests escalated Wednesday night as police dispensed tear gas toward protesters and two reporters, including one from The Washington Post, were arrested.

The White House said Obama was briefed on the situation Wednesday night by Attorney General Eric Holder and senior adviser Valerie Jarrett. The Department of Justice and FBI have opened an investigation into the shooting death of 18-year-old Michael Brown. Brown, who had recently graduated from high school, was unarmed when he was shot by police Saturday.


Riot police clear a street with smoke bombs while clashing with demonstrators in Ferguson, Missouri August 13, 2014.  (Mario Anzuoni/Reuters)

The White House also said Obama will be notified by staff on the situation as needed, and is scheduled to be briefed on the latest developments in Ferguson Thursday morning.

Obama is in the middle of a two-week vacation to Martha's Vineyard. A White House official was criticized Wednesday night for tweeting about a party Obama attended as another night of unrest unfolded in Ferguson.

This post has been corrected to reflect that the White House aide's tweet was not deleted.

Even when President Obama is on vacation in Martha's Vineyard, he still has to attend to the duties of the Oval Office. Lawrence Knutson, author of "Away from the White House: Presidential Escapes, Retreats, and Vacations," gives a look back at the origin of presidential vacations and the criticism that accompanies them. (Jayne W. Orenstein/The Washington Post)