A Bronx man has been arrested in the death of his girlfriend’s toddler.

The boyfriend of the child’s mother, 23-year-old Ramel Green, was arrested today and charged with second-degree murder.

Police say Sanaa Brewington’s grandmother found her unconscious early Saturday.

The 22-month-old girl was taken to a nearby hospital, where she was pronounced dead. The medical examiner’s office said the cause of death was blunt impact injuries to the torso with lacerations of the liver, the spleen, the pancreas and the duodenum.

No information on Green’s attorney was immediately available.