A 64-year-old employee at a Crown Heights laundromat was threatened by a robber at knifepoint Tuesday afternoon, News 12 sources say.

Sources say the employee was alone at the laundromat on the corner of Albany Avenue and Lincoln Place around 2 p.m. when the robbery occurred.

Police say that man was able to flee up Albany Avenue with about $400.

Sources say he left behind a red bag that investigators hope will lead them to a suspect.

Police say the suspect was last seen wearing a mask, blue jeans and a black jacket.