We present observations of V838 Mon and its close vicinity in the three lowest rotational transitions of CO .
The J = 2 \to 1 and 3 \to 2 data were obtained using the 3 m KOSMA telescope .
They include on-the-fly maps covering a large area ( \sim 3.4 sq .
deg . )
around V838 Mon and long integrations on the star position .
Complementary observations in the CO J = 1 \to 0 transition were obtained using the 13.7 m Delingha telescope .
The star position as well as 25 other points preselected in the near vicinity of the object have been measured in this transition .

We report on a detection of two narrow emission components in J = 2 \to 1 and 3 \to 2 transitions at the position of V838 Mon .
Lines were found at radial velocities of V _ { lsr } = 53.3 km s ^ { -1 } and V _ { lsr } = -11.0 km s ^ { -1 } .
Their origin is unclear .
We also shortly discuss results of the observations of the vicinity of V838 Mon .