Detectives investigating the hit-and-run killing of two young brothers have arrested a man on suspicion of causing death by dangerous driving.
The suspect was detained on Sunday after Pawanveer Singh, aged 23 months, and his 10-year-old brother Sanjay died in Wolverhampton on Thursday.
West Midlands Police said the 23-year-old was apprehended in central Birmingham and taken into custody for questioning.
Detective Sergeant Paul Hughes, from the Serious Collision Investigation Unit, said: "Sunday afternoon's arrest is a significant development, but the investigation is continuing and we still have lots of lines of enquiry to pursue.
"We would appeal to the public to keep contacting us with any information.
"Pawanveer and Sanjay's family have been informed of this afternoon's development, and we continue to support them through this terrible period."