Eyewitnesses said they saw "armed police" descend outside a block of flats where the suspect of murder investigation was arrested.
Merseyside Police received calls at around 8.30am that the body of a woman had been found inside a property on Radway Road, Huyton, close to the junction with Lyme Cross Road. Officers and paramedics attended but the woman was pronounced dead at the scene.
The woman has been named as Lorraine Cullen, 43, Merseyside Police confirmed. Her next of kin had been informed and were being supported by specially trained officers.
