A Monroe County man is behind bars after police say he attacked his estranged pregnant girlfriend with a knife.

Antonio Figueroa-Zamora, 29, has been arrested on charges of domestic assault.

Police say he attacked his estranged girlfriend, who is eight months pregnant, on three separate occasions.

During one of the attacks, police say the victim was cut with a knife.

Investigators also say Figueroa-Zamora is living in the U.S. illegally.