A woman who was killed in a travel agents in Southport has been named as Cassie Hayes.
Officers were contacted at 1.25pm on Saturday following reports that a 28 year-old woman had been injured at the Tui travel agents on Chapel Street.
The woman was taken to hospital where she subsequently died from her injuries. Her next of kin have been informed.
A 30 year-old man from the St Helens area has been arrested on suspicion of murder and is currently being held in custody.
It is believed that the incident was domestic-related.
Friends have paid tribute to Cassie.