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.
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Cloudier compared to Wednesday. Rather cool and breezy. Shower risk over Pennines
A six-year-old girl was bitten on the legs by a police dog while officers were chasing a suspect.
A campaign to free two British journalists has gone viral. Phil Pendlebury, from Wigan, is one of those accused of assisting Islamic State.