Watauga, Texas ? Two young children who were forced to smoke marijuana while being videotaped had other illegal drugs in their system at least two weeks after the video was recorded Feb. 7, sources close to the investigation told the Fort Worth Star-Telegram.

Child Protective Services officials are expected to reveal the drug test results at a custody hearing Monday for the 2- and 4-year-old boys and to recommend that the children stay in foster care, officials said.

The children were removed Feb. 23 from the home they shared with their mother, great-grandmother and uncle. The boys initially were expected to be placed with a suitable relative, which is CPS standard practice. But many relatives contacted by CPS had criminal records or other drawbacks, said CPS spokeswoman Marissa Gonzales.

The children’s uncle, Demetris McCoy, 17, and his friend Vanswan Polty, 18, remain in jail, accused of two counts of injury to a child and one count of burglary of a habitation.

Fort Worth police found the video on a digital camera discovered while officers searched McCoy’s home on a burglary warrant. In the video, two teens who appear to be McCoy and Polty light marijuana cigarettes for the children, laugh at them as they stagger about the room and call them pot heads.

McCoy was arrested Feb. 23 and Polty on March 2. Bail was set at $226,000 for McCoy and $160,000 for Polty. A 16-year-old believed to have taken the video is also in custody until at least Thursday, when his next hearing is scheduled, Tarrant County prosecutor Mitch Poe said.

Watauga Police Chief Bruce Ure said Wednesday that no other people have been arrested in connection with the case in this Fort Worth suburb.

The children’s mother, Shatorria Russell, 20, was asleep in another room and had no idea that her brother and his friend were smoking marijuana, her sister Sharonda McCoy has said.