London police have taken a 20-year-old man into custody following a fatal single-vehicle crash on June 6. At around 8:40 p.m., several pedestrians were hit by a car near Hyde Park Road and South Carriage Road in London, Ontario, said police in a news release.

One adult woman was pronounced dead at the scene. Two adults and one teenager died from their injuries in the hospital, and one child remains in the hospital in serious but non-life-threatening condition, police stated.

"A 20-year-old London man was arrested a short time later without incident in the area of Oxford Street West and Cherryhill Boulevard. He remains in custody at this time," the statement said.

Constable Sandasha Bough told CTV News on Sunday that it is still early in the police investigation to say if alcohol or speed were factors involved, and there are no other suspects being sought at this time.

Police are asking anyone with information that may be helpful to the investigation to call them at 519-661-5670.