At least three people have been found dead in the streets of Nottingham, a city in the English Midlands, according to British police.
Initially, two people were found dead on Tuesday in the centre of the city. Just after 4am (03:00 GMT), police officers were called to another incident in which the driver of a van had tried to run over three people. They were injured and are being treated in hospital.
Another man was found dead on another road just outside the city centre.
A 31-year-old man was arrested in the city on suspicion of murder, officers said in a statement.
No indication was given of the motive for the incident, but the police statement made no mention of counter-terrorism officers being involved.
“It is too early to comment on casualties or the exact nature of the incident,” the East Midlands Ambulance Service said.
The University of Nottingham later said on Twitter that two of the victims were its students.
“We are shocked and devastated by the news and our thoughts are with those affected, their families and friends,” the statement said.
Students cancelled the graduation ball that was scheduled on Tuesday evening.
“This is an horrific and tragic incident which has claimed the lives of three people,” Chief Constable Kate Meynell said in the statement.
“We believe these three incidents are all linked and we have a man in custody. This investigation is at its early stages and a team of detectives is working to establish exactly what has happened,” she added. (AlJazeera)