Update Nov 15, 8.25am: Jason Byrne has been found safe and well.

Gardaí in Dublin say they have serious concerns for the well being of a missing man.

37-year-old Jason Byrne was last seen at around 1.45pm today at Wytheville Road, Ballybrack.

He is described as being 6 foot in height, of thin build and has dark receding hair.

When last seen Jason was wearing a dark navy top and dark blue jeans.