Arrested partner of missing Melbourne woman released without charge

A man arrested in relation to the disappearance of a Melbourne mother has been released without charge.

Ju Zhang, also known as Kelly, was last seen at her Epping home about 5.30pm last Monday and reported missing on Tuesday.

Police arrested Ms Zhang's partner, 35-year-old Doncaster man Joon Soong Tan yesterday afternoon.

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He was interviewed by Missing Persons Squad detectives today, but has been released this evening without charge pending further enquiries, police said.

Detectives say they are keen to speak to anyone who may have seen Ms Zhang or has further information about her current whereabouts.

Police have been concerned for Ms Zhang's welfare as she left her eight-year-old son alone and her disappearance is extremely out of character.

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The 33-year-old mother was wearing a pink pyjama top and shorts and no shoes at the time of her disappearance.

She did not have any personal belongings with her at the time and her mobile phone is missing.

Anyone who sight's Ju should contact Triple Zero (000) immediately.

Anyone with other information about Ju's disappearance is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential online report at www.crimestoppersvic.com.au