Detectives investigating the possible murder of a mother-of-two from Kent have been granted more time to question a suspect.
Alexandra, 34, was last seen at a petrol station near Cranbrook at 7.20am on Sunday, November 14, and has not been in contact with her family since - which is "completely out of character".
Police investigating her disappearance arrested a 40-year-old man from St Leonards-on-Sea in East Sussex on Thursday, on suspicion of murder.
He was due to be released from custody ____.
Officers have now been granted extra time to question him.
The development comes as police confirm a 53-year-old man from Hastings, who was arrested in connection with the investigation on Friday, has been released without charge.
Alexandra's disappearance is being treated as suspicious, and a potential murder.
Police remain keen to hear from anyone who may have information that could assist with their inquiries, and have released a photo of her white Mini Cooper, which has a black roof and the registration number MF55 YHM.
The vehicle is known to have travelled between Mrs Morgan's home and the Hastings area between Sunday, November 14 and Monday, November 15.
Kent Police officers, with support of Sussex Police are carrying out searches at four locations in the Hastings and St Leonards-on-Sea area, as part of their work to locate Alexandra.
Residents can expect to see a heightened police presence in the area as inquiries continue.
Det Ch Insp Neil Kimber, of the Kent and Essex Serious Crime Directorate, said: "It is completely out of character for Alexandra not to contact her family and we are now treating this case as a potential murder.
"While we continue our investigation, I would urge anyone who may have seen Alexandra or her white Mini Cooper with a black roof to contact us.
"If you think you may have seen Alexandra or something suspicious but are not sure, please do not hesitate to call and let us know."
Anyone who has seen Alexandra or her car is urged to contact Kent Police on 101 quoting reference number 18-0280.
If you have other information, CCTV or dashcam footage that may be able to assist our officers, please upload to the Major Incident Public Portal via this link.
You can also contact Crimestoppers anonymously on 0800 555111, or by using the anonymous online form on their website.