National Guard members deployed to D.C. to combat "lawlessness" will remain until late September, according to a leaked memo.

President Donald Trump said Monday he is placing Washington, DC’s, police department “under direct federal control” and deploying National Guard troops to the nation’s capital, citing a public safety emergency after an assault on a former government worker.

The US president has declared a public safety emergency as he promises to tackle crime and homelessness in the nation's capital.