Police are warning people to "walk away" if they're approached by a stranger with a piece of A4 paper.
Officers have seen a rise in reports of distraction thefts which involve a sheet of paper or a map. Cheshire police confirmed that within the space of two weeks, between May 17 and May 31, officers have been called to five separate incidents.
The suspects have stolen mobile phones from the victims across areas including Warrington and Nantwich. People have confirmed that in each case, the suspect entered a shop or café and approached the victims holding a sheet of A4 paper or a map.
READ MORE: Warning issued after teenage girl dies in Carr Mill Dam tragedy
They have then distracted the victims with the paper or map while stealing their mobile phones. The suspects were men in all incidents except in Marton where the suspect was a woman.
Detective inspector Chris Morris said: "Enquiries into these incidents are currently ongoing and I’d ask anyone with any information to get in touch. I’d like to take this opportunity to advise you to be vigilant.
"Always ensure that your mobile is kept out of sight and if you are approached by a stranger in unusual circumstances, do not engage with them, particularly if they ask for directions or change. Be firm with them, walk away, and report any suspicious activity to the police.
"Anyone who sees suspicious activity or has any information should contact Cheshire Police on 101. Alternatively information can be given anonymously, via Crimestoppers, on 0800 555 111."
READ NEXT: Virgin Media customers warned to switch off their routers
Mum who 'got on with the pain' received devastating phone call at work
Phillip Schofield's 'unforgivable' admission as he issues tell all BBC statement on affair
Merseyside's best fish and chip shops - an insider's guide
M&S shoppers praise 'comfy' £45 sandals that 'go with every summer outfit'