The mum of a young man who vanished without a trace is on a quest for answers amid fears he may have met foul play.

Wallsend father-of-two Jayden Harwood, 20, disappeared after he went for a walk while visiting his girlfriend’s family in Ingleburn, in Sydney’s south-west on March 1.

Witnesses claim he was going door to door begging for help before borrowing a phone to make a chilling final phone call to his mum and stepdad to say he had been attacked and needed directions back to his girlfriend’s family home.

Almost 11 weeks on, there has been no sign of or contact from Mr Harwood since, despite extensive searches of surrounding streets and bushland.

NSW Police re-issued a public appeal regarding Mr Harwood’s disappearance last Thursday.

It’s understood detectives are now treating his disappearance as suspicious and have spoken to several ‘persons of interest’, Nine News reported.

His mum Alana Wallace believes someone knows what happened to her son, who missed his daughter’s first birthday on Sunday.

‘I need my son back, I need my baby back,’ she said as she fought back tears.

Jayden Harwood's distraught mum Alana Wallace (pictured) wants to know what happened to her son

Jayden Harwood’s distraught mum Alana Wallace (pictured) wants to know what happened to her son

Mr Harwood (pictured right with his girlfriend) was last seen in Ingleburn, in Sydney's south-west on March 1 while visiting his girlfriend's family

Mr Harwood (pictured right with his girlfriend) was last seen in Ingleburn, in Sydney’s south-west on March 1 while visiting his girlfriend’s family

‘I need to know what’s happened, why he’s not here.’

Mr Harwood and his girlfriend had travelled from Newcastle to Sydney at the time of his disappearance.

His bank accounts remain untouched and his phone is switched off.

‘My son isn’t here with me and with his daughter on her first birthday,’ Ms Wallace said.

‘If you have anything big, small, short or tall, please, please come forward.

‘I just want my beautiful boy home.’

Strangers in Sydney’s south-west haven’t given up the search and spend their weekends putting up posters and doorknocking.

‘I think it’s important to find out what happened to Jayden because it did happen in our community and it is important to us,’ local Brittany Wells said.

Ms Wallace urged anyone with any information about Jayden (pictured) to come forward

Ms Wallace urged anyone with any information about Jayden (pictured) to come forward

‘He’s not just a missing person’s poster.’

‘He’s a real person, he’s got family that love him, children that love him, and he’s wanted and needed.’

Ms Wallace previously told Daily Mail Australia she had put up her car as a reward in a desperate bid to find her son. 

The concerned mum revealed how she received a disturbing phone call after her son went on a walk alone while visiting family with his girlfriend.

‘It was a young man and his mum on the phone at first because Jayden had knocked on their door asking for help,’ Ms Wallace told Daily Mail Australia.

‘He was confused and he told us he had been assaulted and was hurt and didn’t know how to get back to Jade’s parents’ house.

‘That was the last contact ever made. He didn’t say what exactly had happened or who had done it – he was really disoriented.’

It been 11 weeks since Jayden (pictured) was last seen and heard from

It been 11 weeks since Jayden (pictured) was last seen and heard from

Mr Harwood's (pictured) bank accounts remain untouched and his phone switched off

Mr Harwood’s (pictured) bank accounts remain untouched and his phone switched off

Mr Harwood is described as Caucasian, 165cm tall, medium build, with short brown hair.

He was last seen wearing a white T-shirt with black logo across the chest, black shorts and dark coloured sneakers.

The young father is known to frequent the Ingleburn, Newcastle and Toronto areas  and gets around via public transport.

Anyone with information is urged to call Crime Stoppers. 

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Read more at DailyMail.co.uk