More than 20 people have been arrested in Ferguson, Missouri, amid protests marking the anniversary of the death of unarmed black teenager Michael Brown.
A state of emergency was declared on Monday afternoon, as officers in riot gear forced people off the streets on Monday night, BBC reported.
A police spokesman said 23 people were detained, but “there were no shots fired, no smoke or tear gas used.”
On Sunday, Tyrone Harris, 18, was critically wounded after being fired on by police in Ferguson.
The authorities said Harris was armed and opened fire, but his father described their account of events as “a bunch of lies.” Prosecutors have filed 10 charges against him, including assaulting an officer.
The shooting followed day of peaceful and somber commemorations in memory of Michael Brown. The 18-year-old was shot in August 2014 by a white police officer who was later cleared of any wrongdoing by a grand jury and the US Department of Justice.
On Monday night, marchers chanted, beat drums and carried signs in memory of Brown, but some demonstrators also attacked officers, according to the St. Louis Police Department.
By early morning on Tuesday, most people had left the areas where confrontations had occurred.
There have been a number of high-profile shootings of unarmed black men in US cities in recent months.
The most recent case involved 19-year-old Christian Taylor, who was shot dead by a white police officer after he was spotted on surveillance footage vandalizing cars in Arlington, Texas, on Friday.
