At the end of march - beginning of april 2019 ( 3/26/19 - 4/3/19 ) while driving to work across the key bridge in baltimore ( heading from baltimore county into anne arundel county ) i noticed an off white object the shape of a blimp or tic tac come into my view from the northeast over the port of baltimore. i was shocked at how quick and smooth the object moved across the sky ( heading west/southwest). it seemed almost effortless. i kept my eyes on the object as it flew across the baltimore harbour towards an industrail building in anne arundel county. as shocking as the sight was, what really intrigued me was as i was watching the object fly away, a jet fighter came out of nowhere flying extremley low and flew after the object, in pursuit no doubt. the jet appeared from the east/southeast.