"He is following the situation closely", Earnest told reporters aboard Air Force One en route to Poland for a North Atlantic Treaty Organisation summit.
Philando Castile was shot by police in St. Paul, Minnesota, when he was allegedly stopped for a broken tail light.
Their vehicle had been pulled over in broad daylight for a broken taillight.
Marguerite Gordon, a 42-year-old restaurant owner, was among those who sprawled on the plaza in front of the police department. Reynolds explained that Castile, the cafeteria supervisor at a Montessori school, was licensed to carry and advised the officer he had a firearm. "I told him to get his hand up!"
Caitlin described the mood in Baton Rouge earlier Thursday, and said people are still digesting events. A police officer shot also Castile at point-blank range after he attempted to comply with the officer's instructions.
Castile's only history with the law was misdemeanor traffic violations.
The pop star has become increasingly vocal on social issues, particularly after the release of Formation, a song accompanied by a music video with politicized visuals including a young black boy dancing in front of a line of armed police, "stop shooting us" graffiti and a sinking New Orleans police vehicle.
One showed Sterling, who appeared to be pinned to the ground and struggling with two officers outside a convenience store before one shouted "gun", indicating Sterling had one. He said he spoke with President Obama's chief of staff, Denis McDonough, and said he would urge the USA attorney general and the head of the Justice Department's civil rights division to open whatever investigations they deemed appropriate. After being pulled over, African-Americans and Hispanics are three times more likely to be searched.
"In the meantime, all Americans should recognize the anger, frustration, and grief that so many Americans are feeling - feelings that are being expressed in peaceful protests and vigils".
"When incidents like this occur, there's a big chunk of our fellow citizenry that feels that because of the color of their skin, they are not being treated the same, and that hurts".
Cellphone video of his shooting was posted online and set off angry protests in this city of about 229,000, where 54 percent of the population is black and more than 25 percent live in poverty. "This is not just a Hispanic issue. It's an American issue".
The mother of the son of a black man killed by white Louisiana police officers said Friday she grieved with the families of five police officers killed in Dallas during a protest over police shootings, adding she was now "walking a mile with them".
Pop superstar Beyonce pleaded Thursday for an end to the "war" on minorities in the United States after another two contentious killings by police of African-Americans. "It is to say that, as a nation, we can and must do better to institute the best practices that reduce the appearance or reality of racial bias in law enforcement".