A police officer in the US state of Ohio has shot dead a 16-year-old black girl while responding to an emergency call over an attempted stabbing.
The teenager involved in the incident, in the state capital Columbus, has been identified as Ma'Khia Bryant.
Columbus police have produced bodycam footage which appears to show the girl attacking others with a knife before being shot.
An inquiry is under way, with officials urging local residents to remain calm.
The officer involved, who has not yet been named, has been placed on paid administrative leave, US media report.
Police were called to an address in a south-eastern area of Columbus at about 16:45 local time (20:45 GMT) on Tuesday, the Columbus Dispatch newspaper reported.
Bodycam footage provided by the police shows an altercation with a group of individuals outside a house before one of them - said to be Ma'Khia Bryant - appears to lunge at another member of the group with a knife in hand.
A police officer then approaches the group in the driveway and shouts "get down" before firing several shots, fatally injuring the girl.
