A Lincoln security guard was grabbed and threatened with a knife during an assault in a Lincoln village.
The incident happened on May 29 and around 6.40pm on a site near the Riverside business park in Saxilby.
The security guard was doing his rounds when two men approached him; one grabbed him around the neck and took out a knife.
The grabbing caused some redness but there was no injury caused by the knife.
Afterwards the men rode off on bicycles along the Fossdyke canal towards the A57, Saxilby.
One offender is described as white and in his mid-twenties, about 5’9″ tall and of slim build. He had short black hair and was wearing a light coloured baseball cap, hoodie or jumper light in colour and light coloured gloves of a leather-like material.
The second man was white and in his mid-twenties and about 5ft 7″ tall of medium build. He had stubble and short blonde hair. He was wearing a light blue colour crew neck jumper, which was covered in dust.
Police are asking anyone who may have seen the two men in the area to contact Lincolnshire Police on 101, quoting incident number 372 of May 29.