Police on Sunday questioned a man arrested for attempted murder after a car plowed into pedestrians on a street in the central  English city of Derby, injuring seven of them.

Chief Superintendent Emma Aldred said police believe this is an "isolated incident" with "no wider risk to the public."

UK counter-terrorism officers were supporting the investigation, but they were keeping an open mind on the motive of the incident.

Aldred said the assistance of counter-terror officers was "common practice for an incident of this nature."

"I would like to clarify that this does not mean the incident is currently being treated as terrorism," she added.

What do we know about the suspect in Derby incident?

Shortly after the incident, the suspect was found and arrested "on suspicion of attempted murder, causing serious injury through dangerous driving, inflicting grievous bodily harm with intent, and dangerous driving."

The 36-year-old in custody is a Derby resident who has lived in the UK "for a number of years," according to Aldred.

The Interior Ministry refused to disclose the man's immigration and citizenship status.

"The police are leading the investigation and ministers are being kept updated as it progresses," a spokeswoman for the ministry said.

Seven suffer 'serious but not life-threatening injuries' 

Police said seven people had suffered "serious but not life-threatening injuries" on Saturday when a car drove into pedestrians.

According to Derbyshire Police, the car, a black Suzuki Swift, struck several people in Friar Gate around 9:30 p.m. local time (2130 GMT) on Saturday.

The seven wounded people were treated by ambulance crews at the scene and taken to Royal Derby Hospital and Queen's Medical Center in nearby Nottingham, police said.

Catherine Atkinson, the Member of Parliament for Derby North, said she was "deeply shocked."

"My thoughts are with those injured and I'm grateful to our emergency services," she said on social media.

Edited by: Natalie Muller