A number of people have been stabbed in Birmingham city centre and police have since declared a “major incident”.
West Midlands Police said they were called to reports of a stabbing at around 00:30 BST on Sunday.
Officers added a number of other stabbings were reported in the area shortly after.
The force said: “We are aware of a number of injured people, but at the moment we are not in a position to say how many or how serious.”
It said emergency services were working together at the scene, and making sure that those who were injured received medical care.
Its statement continued: “Work is still going on to establish what has happened, and could take some time before we are in a position to confirm anything.
“At this early stage it would not be appropriate to speculate on the causes of the incident.
“The emergency services have well-rehearsed plans for dealing with major incidents. Our response is ongoing in Birmingham city centre and will be for some time. Cordons are in place, and there are some road closures.”
People are being asked to remain calm but vigilant and to stay away from the area.