Tear gas has been fired and a curfew imposed amid angry protests after police fatally shot a black man in a traffic stop in the US city of Brooklyn Center, just north of Minneapolis.
The man has been identified by relatives as 20-year-old Daunte Wright.
Brooklyn Center’s mayor issued a city-wide curfew until 06:00 (11:00 GMT), telling people to “be safe, go home”.
Tensions in Minneapolis are high as the trial of the former officer accused of killing George Floyd takes place.
Minnesota Governor Tim Walz said he was “closely monitoring the situation” and praying for Mr Wright’s family.
Hundreds of protesters chanting Daunte Wright’s name engaged in a stand-off with riot police late on Sunday outside the police headquarters in Brooklyn Center, just a few kilometres north of central Minneapolis.
Two police vehicles were pelted with stones and jumped on, Reuters news agency reported.
Police later ordered the protesters to disperse, with footage showing tear gas and stun grenades being fired by officers.
Local media reported some looting taking place in a number of areas and Brooklyn Center Mayor Mike Elliott announced on Twitter he was issuing a curfew until 06:00.
“We want to make sure everyone is safe. Please be safe and please go home,” he wrote.