@madonna / Instagram 1 / 16
@madonna / Instagram 1 / 16

Madonna and Guy Ritchie's battle over son Rocco is still raging. Amid the former couple's custody feud, Madonna is reportedly "concerned" about her 15-year-old son's welfare after the teen was caught smoking a suspicious substance for the second time in the last two months.

The video, which was published by The Sun, features the American pop star and the British director's son smoking an unknown substance in a London skate park with some older friends.

Guy has temporary custody of Rocco, who is living in London with his father after reportedly refusing to continue to go on tour with his world-famous mother. According to the newspaper, the "Music" songstress is worried about her ex's parenting skills in light of the new video and pics. The 57-year-old icon is said to be "shocked and devastated" by the recent images.

A source told the outlet that, "[Madonna] has grown increasingly concerned that Rocco's father is doing nothing to give him rules or guidance."

Madge and Guy were originally due in court on Feb. 3, however the court date has been postponed until March 2. No reason has been given for pushing the date back, but TMZ reports that it is likely due to negotiations between the exes.