Officers, including crime scene investigators, are today still in Cyprus Road, Fratton, after the body of a woman in her 70s was found on Monday morning around 10am.
A 48-year-old man was arrested on suspicion of murder and has been in police custody since the incident.
A cordon was set up outside the house - with the road then closed off.
Today police said they are still carrying out enquiries into the death. No one else suffered injuries in the incident, the force added.
A police spokesperson said on Monday evening: “We were called just before 10am on Monday (14 September) to a concern for welfare at an address on Cyprus Road in Portsmouth.
“Sadly, a woman in her 70s was pronounced dead at the scene. Her next of kin have been notified and are currently being supported by specialist officers.
“Our investigation is ongoing to establish the exact circumstances of what happened, and the death is currently being treated as suspicious.
“As part of our enquiries, a 48-year-old man from Portsmouth has been arrested on suspicion of murder. He remains in police custody at this time. Police remain at the scene as they continue to carry out enquiries to establish what happened.”
Anyone with any concerns or information is being encouraged to speak to officers in the area.



3. Police murder probe in Cyprus Road
Police murder probe in Cyprus Road Photo: Stuart Vaizey

4. Police murder probe in Cyprus Road
Police murder probe in Cyprus Road Photo: Stuart Vaizey