Four men arrested over the fatal shooting of nine-year-old Olivia Pratt-Korbel have been bailed by police.

A 34-year-old man from Liverpool was arrested on suspicion of murder and attempted murder on Sunday and questioned by police.

A 34-year-old man from Liverpool, a 41-year-old man from Knowsley and a 29-year-old man from Liverpool were arrested on suspicion of assisting an offender.

All four have been released on conditional bail.

Olivia was shot in her home when a gunman chased convicted burglar Joseph Nee into the property in Dovecot at about 10pm on Monday 22 August.

A post-mortem examination found the cause of death was a gunshot wound to the chest.

Merseyside Police said: “The investigation into Olivia’s tragic murder is ongoing and we still need to build up a strong evidential picture so that we can bring those responsible to justice.”

On Tuesday, Olivia’s mother Cheryl Korbel gave her first public remarks since her daughter was killed, and broke down in tears as she paid tribute to her “little shadow”.

She described how Olivia would never stop talking and said: “That’s what I miss the most, because I can’t hear her talk.”

And she said the family had been planning days out and a trip to buy Olivia’s new school uniform before she died.

Wearing a bandage on her wrist after she was injured in the shooting, Ms Korbel said she hoped whoever was responsible for the killing would come forward.

“You know you’ve done wrong so you need to own up,” the 46-year-old said.

“Like I’ve taught my kids, you do something wrong, you own up to it.

“If anyone is hiding these guns, they need to speak up because they need to be off these streets.

“No one, no one at all should have to go through this.”

Ms Korbel said Olivia was “amazing” and “loved life”.

“She was my little shadow. She went everywhere with me,” Ms Korbel added. “Everyone she met, they all fell in love with her. She left a mark on everyone she met.”

“She may well have only been nine but she packed a lot in to those nine years. She never, never stopped talking – and that’s what I miss the most because I can’t hear her talk.

“We were organising days out, we were on the summer holidays. We took Liv swimming.

“We went to Blackpool, just me and Liv. We were talking about going to get a new uniform for school but I didn’t get that chance to get a new uniform.

“But I’ll keep going, for Liv.”