Detectives are appealing for information from the public as part of an investigation into the deaths of two people on Mersea Island, near Colchester.

We were called by colleagues in the ambulance service to concerns for the welfare of two people at a home in Victory Road on Sunday 9 April, at about 1.30pm.

Officers arrived and, sadly, found married couple Stephen Baxter, 61, Carol Baxter, 64, had died.

At that stage, their deaths were being treated as unexpected and not suspicious and we were working to establish the circumstances around their deaths.

As a result of an extensive investigation and toxicology analysis, two men and a woman were arrested on Thursday 6 July in order to gain comprehensive accounts from them.

A woman and a man have been released on bail while as other enquires are conducted.

At this stage, one man remains in custody for further questioning.

We continue to remain open-minded as to how the couple died and we’re exploring a number of lines of enquiry.

We are now appealing to anyone who has not already come forward with information on the couple’s movements over the Easter Bank Holiday weekend, April 7, 8 and 9.

We would specifically like to hear from anyone who saw Mr and Mrs Baxter, spoke to them or interacted with them on those dates, no matter how fleeting the encounters may have been.