Lincolnshire Police are at the scene of a sudden death on De Wint Avenue in Lincoln.
They were called at 3.58pm to the house.
The age of the man has not been released.
There are not believed to be any suspicious circumstances, police said.
#Lincoln Due to an incident on De Wint avenue in Lincoln, Service 9 outbound and the service 6 inbound are having to divert via Tritton Road in both directions. They are currently unable to serve Newark Road or De Wint Avenue. We apologi for any inconvenience this may cause.
— Stagecoach East Midlands (@StagecoachEMid) September 25, 2019