British police declared a ‘major incident’ early on Sunday after multiple people were stabbed in the centre of England's Birmingham city, the NDTV said in a report.

"We can confirm that at approximately 12:30am today (Sunday 6 September) we were called to reports of a stabbing in Birmingham city centre", West Midlands Police said in a statement.

"A number of other stabbings" were reported in the area shortly after and "this has been declared a major incident", the statement added.

"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.

Police said that all emergency services are working together at the scene, and making sure that those who are injured receive medical care.

Cordons are in place, and there are some road closures.

An earlier incident of stabbing injured five men on Saturday night in southeast London, at The Broadway in Bexley.

One had suffered potentially life-threatening injuries, the Metropolitan Police said.

Five suspects were arrested on suspicion of causing grievous bodily harm, the force said, according to a report by the BBC.