Officers from Runcorn CID are appealing for information after an attempted robbery on Saturday.
The incident happened on Brookvale Avenue North between 3pm and 3.40pm.
Police received reports of five young men – in their late teens and early twenties – attempting to rob an older man of his bike.
The men tried to drag the older man, who was approximately 45-50 years old, off his bike. One of the men was holding a knife.
The first man is described as white, wearing a dark grey/blue waterproof jacket and black tracksuit bottoms. He was riding a red/orange mountain bike.
The second man was wearing a light grey waterproof coat and black tracksuit bottoms. He was riding a black mountain bike and wearing a black rucksack on his back.
The third man is described as white and he was wearing a khaki green coat and dark blue tracksuit bottoms. He was riding a black and white mountain bike.
The fourth man was wearing a light blue puffer coat and light grey tracksuit bottoms. He was riding a white mountain bike.
The fifth man was wearing a large green/grey puffer jacket and black tracksuit bottoms. He was riding a black mountain bike.
Detective Constable Phillip Brown said: “Our enquiries are ongoing in a bid to trace the offenders. We believe the area was quite busy at the time with people out and about and I would appeal to anyone who has seen anything suspicious or has any information about what happened or who the offenders are to come forward.
“We also need to trace the victim and speak to them as they have yet to come forward. If you are the man involved in this incident I would urge you to get in touch.
If you have any information then please call Cheshire Police on 101, quoting incident number IML 354771, or on our website via https://www.cheshire.police.uk/contact/general-enquiries/
Alternatively you can call Crimestoppers anonymously on 0800 555 111.