A man in his 50s was threatened with a knife as someone tried to attack him in Boston and police believe it could be linked to another recent case.
The man was threatened by a male in his early 20s, who tried to attack him in the Wide Bargate area of Boston at around 5.30pm on April 13.
The offender is described as approximately five foot nine and he was wearing a black jacket, police said.
The victim was not injured.
As previously reported, in a separate incident a man in his 20s was sent to Pilgrim Hospital for treatment to a serious stab wound after an altercation near the clock repair shop on West Street, Boston, on Saturday, April 14.
Teenager Rafal Grochowski, 20, of Willoughby Road Boston was charged with wounding with intent after the incident on Saturday, April 14, before being released under investigation.
After appearing at Lincoln Magistrates Court the youngster was transferred to appear at Lincoln Crown Court on May 21.
Police believe the two incidents could be linked, but say they are unable to disclose why.
Anyone with any information on either incident should contact police on 101 quoting incident 355 of April 13 and/or incident 25 of April 14.
It can also be reported anonymously to Crimestoppers on 0800 555 111.