(ANSA) - Cittadella, October 11 - Italy's national police chief on Thursday told ANSA he had "profound regret" for the case of a 10-year-old boy who officers hauled out of school kicking and screaming over a bitter custody battle. Antonio Manganelli launched an internal investigation Thursday after a video of the emotional scene hit national airwaves, sparking a furore among the boy's family members and many in the public at large. Footage of the scene showed two plain-clothes officers forcibly picking up the boy named Leonardo, one by his shoulders and the other by his ankles, and taking him away as he screamed for his aunt who was filming. A court had ordered that the boy be turned over to the custody of his father. Child-protection officers said they had repeatedly attempted to pick up the boy at his mother's home but she and her family would not hand him over. "We will work with utmost rigor in the internal investigation," he said.