Around ten police vehicles raced to the TUI branch which is situated in a popular parade of shops.
"We send our deepest sympathies to the friends and family of the staff member involved.
We’re doing everything possible to assist the local police with their investigation and support our customers and staff at this difficult time.” Delivery driver Rich Lawson, 27, was dropping off a package at the nearby Vision Express shop when he said he was ushered in and locked inside by staff.
"And that was Cassie, always making everyone dance." She told the Mirror: "She could get away with anything because everyone loved her.
She was so happy, loyal, cheeky but so loving." Yesterday afternoon, a 30-year-old man from St Helens was arrested on suspicion of murdering her as she served a family.
"It's killing me that I have to tell her that her mammy has died the one person [she] adored." She added: "My absolute world I love you so so much have done since we first met I promise I will look after our girl the best I can." The horror unfolded at lunchtime in the centre of Southport.
The victim was on a weekend shift when the man entered the shop premises and attacked her.Last night Merseyside Police said: “We can confirm a murder investigation has been launched following an incident in Southport today, Saturday 13th January.“Officers were contacted at 1.25pm following reports that a 28-year-old woman had been injured at the TUI travel agents on Chapel Street.Her heartbroken ex-girlfriend has since told of the torment of having to tell their little girl what happened.Heartbroken Leah Mc Donald, who had a daughter with Cassie, wrote on Facebook: "I am completely dead inside my little baby is laughing and messing around.HAUNTING footage shows travel agent Cassie Hayes laughing and dancing in the TUI branch she was killed in.