A fifth person is being interviewed by police investigating the disappearance of a mother-of-three from Cheetham Hill in Manchester.
Rania Alayed, 25, was reported missing from home on Tuesday 2 July 2013.
Detectives say it is 'extremely out-of-character.'
A 34-year-old man from Gorton was arrested yesterday on suspicion of assisting an offender.
Officers are continuing to interview a 33-year-old man arrested on suspicion of murder and two men, aged 38 and 64, and a woman aged 55, on suspicion of assisting an offender.
More top news
Police detectives investigating the murder of Sam Cook have arrested two people on suspicion of assisting an offender.
Students from Chetham's school of music in Manchester will release a recorded version of Oasis' Don't Look Back In Anger tomorrow.
A new scheme to address homelessness in Greater Manchester will see 270 homes made available to rough sleepers, it has been announced.