Jonny Humphries
BBC News, Manchester
Handout
Louisa "Lulu" Palmisano, three, died when a van struck a tram, causing it to mount the pavement
A three-year-old who was killed after a van struck a tram and mounted the pavement has been described by her parents as the "sweetest, kindest, and most generous little girl".
Louisa Palmisano, known as Lulu, from Burnley, died after the impact of the collision forced the van off the road in Manchester city centre at about 10:00 GMT on Saturday.
"Her absence has left a devastating void in our family," her parents said. "She was our only child, our whole world. We were simply enjoying a happy family day out when this unimaginable tragedy struck."
Greater Manchester Police (GMP) said a 36-year-old man had been arrested on suspicion of causing death by dangerous driving.
Police said they were called to reports of a crash in Manchester city centre at about 10:00 GMT on Saturday
Lulu's parents described their daughter as "full of creativity and joy" and said she "absolutely loved going to nursery".
They said: "In an instant, our lives were shattered beyond repair.
"The pain of losing her is unbearable, and we miss her more than words can ever express."
Police said the driver of the van left the scene after the crash near Manchester Art Gallery.
The force said a man had been arrested on Monday and remained in custody.
Det Sgt Andrew Page said Lulu's family were being supported by specially trained officers and had requested privacy.
He said the investigation was still active and urged anyone with any information to get in touch.
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