The command of the National Guard in Ferguson, Missouri will fall under the state highway patrol and will be limited in scope, Missouri State Highway Patrol Superintendent Colonel Ronald Replogle told a press conference.
"They will be tasked with protecting the unified command centre that we now stand in. That will free up law enforcement resources to protect the peaceful protesters," said Supt. Col. Replogle.
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Cooler and fresher across the UK over the next few days.
The prime minister was shouted at as she left the scene of the tragedy in which at least 79 people died.
Father-of-six Makram Ali, 51, was already receiving medical treatment as the attack unfolded. He died from multiple injuries, police say.