A two-week-old baby killed after his pram was hit by a car has been named as Ciaran Leigh Morris.
The baby was being pushed along the the High Street in Brownhills, near Walsall, by his family when a BMW struck his pram at around 4pm on Easter Sunday.
The BMW was understood to have been involved in a collision with another car before veering onto the pavement, West Midlands Police said.
The driver left the scene, but a man was arrested in Bloxwich a short while later.
Ciaran was rushed to hospital but nothing could be done to save him, the force added.
A relative also suffered a shoulder injury, but no-one else was hurt.
In a tribute, Ciaran’s parents said: "Mommy’s and Daddy’s hearts will always ache, we love you more than anything.
"We didn’t get to keep you for long but we are happy we had the chance to meet you, look after you and call you our son.
"Fly high angel."
Lisa Ford, Ciaran’s great-aunt, told Sky News: "We’re a very close family… and it’s ripped us all apart.
"We’ve all got to stay strong, we’ve just got to be strong. It’s just heartbreaking."
Sergeant Mark Crozier, from West Midlands Police’s serious collision investigation unit, said: "We’ve all been left numb by the sad death of Ciaran. He was just two-weeks-old and his life has been tragically taken away.
"To see the loss of someone so young is difficult for us as officers, but we know the pain is even greater for Ciaran’s family.
"We’ll be doing all we can to support them while also trying to establish what happened leading to the collision.
"I would ask people to please respect the family at this sad time and allow them the privacy to grieve."
A 34-year-old man arrested on suspicion of causing death by dangerous driving remains in custody, police said.
Dozens of flowers have been left at the scene of the incident.
Speaking about the incident, local resident Emma Prince told Sky News: "We were all outside the neighbours, the children were playing outside.
"We heard all the sirens, we heard the air ambulance so we figured something had gone on. It’s just heartbreaking, just horrific."
A passenger from the BMW and the occupants of the other vehicle are helping with the ongoing enquiry.
But police are still keen to hear from anyone who was in the area and may have dashcam footage, either before or at the time of the collision.
Information can be reported via FL_COLLISION_INVEST@west-midlands.pnn.police.uk or by calling 101