Updated

Police say a Pennsylvania woman tortured her 2-year-old son with at least 15 cigarette burns while her boyfriend watched and laughed.

Police have jailed 19-year-old Anna Russell and 25-year-old Enrique (en-REE'-kay) Soto on charges including aggravated assault and conspiracy.

Police say the burns were inflicted on Aug. 1 and were discovered a week later when the boy's grandmother took him to a hospital. Doctors told police the burns were "administered deliberately, in a chronological order, over a very short period of time in one sitting."

Police have since interviewed the boy's 3-year-old sister who told them Russell burned the boy while Soto watched and laughed.

Online court records don't list an attorney for the East Pittsburgh couple, who face a preliminary hearing April 19.