Police are searching for a man who they believe was involved in attempted burglaries near Lincoln.
The incidents took place on Hykeham Road and Crow Park during the early hours of May 5.
Properties were targeted at 1am and 1.20am respectively and in both cases the suspect was disturbed and no items appear to have been stolen.
A spokesperson for the force said: “We have a description of him being 6ft or possibly taller and aged around 30.
“He had short dark hair and wore dark clothes with a hooded top.
“It is believed he may have left the addresses on a bicycle.
“Please can residents in the Hykeham area ensure their homes are locked up at night.”
Anyone with information should call 101 quoting incident 9 of May 5.