He was last seen in Bristol in March, 2024Jack O'SullivanJack O’Sullivan(Image: PA)

The family of Jack O’Sullivan continue their tireless search to find him after he vanished in Bristol.

Over 15 months after Jack, who would now be 24, went missing, his family continue to appeal for information that can help them find him.

His mum, Catherine, has thanked everyone who has supported and provided information to them in the search to locate Jack.

She said that although they have not been regularly posting updates on social media, they are “working behind the scenes” to get answers.

Jack’s family are offering a £20,000 reward for any key information which leads to finding and bringing him home safely.

Posting to the Find Jack Facebook page, Jack’s mum, Catherine said: “I would just like to say how much my family and I appreciate all the support that has come from sharing our information and supporting our search for Jack.

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“We have been quiet for a while but we are still constantly working behind the scenes on getting answers.

“Unlike the authorities, we follow up on all information that comes our way.

“We will never give up as we are more certain than ever that someone knows what has happened to Jack and where he is.

“It’s been 15 months of unimaginable hell. Please do the right thing and share any information that could help us!”

Jack was last seen at 3.15am on Saturday, March 2, 2024, in the area of Brunel Lock Road and Brunel Way after a night out in Bristol.

He had been on a night out with student friends and went to a home in Hotwells after a night at a pub.

After telling his mum that he would take a taxi home – shortly before 2am – he left the party around an hour later.

CCTV footage, shared by police, then shows Jack walking around the Cumberland Basin for 30 minutes.

At around 3.24am, he then called a friend still at the party and, when they rang back 10 minutes later, Jack said “hello” before the call cut out.

Though Jack’s phone disconnected, police believe it did not leave the Hotwells and Cumberland Basin area, and it remained active until 6.44am.

Police, private organisations and members of the public have carried out numerous searches in Bristol since March 2, 2024, but all have drawn a blank.