Al Jazeera English: A nighttime curfew was in force in Los Angeles as local officials sought to get a handle on protests that United States President Donald Trump claimed were an invasion by a “foreign enemy”.

“I have declared a local emergency and issued a curfew for central Los Angeles to stop the vandalism, to stop the looting,” Mayor Karen Bass told reporters on Tuesday.

One square mile (2.5 square kilometres) of the city’s more than 500-square-mile area will be out of bounds until 6am (13:00 GMT) for everyone apart from residents, journalists and emergency services, she added.

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