NEW DELHI, July 11 -- The Delhi Police have arrested eight more people, including the biological parents of trafficked infants, and rescued two more children linked to the interstate child trafficking case, taking the total number of arrests so far in the matter to 23 and children rescued to nine, investigators said on Friday.

Deputy commissioner of police (central) Rohit Rajbir Singh said the latest arrests include biological parents, alleged traffickers, middlemen and buyers. Investigators have also uncovered a money trail worth several lakh rupees, he added.

The two infants rescued in the latest operation were traced to different locations outside Delhi as investigators expanded the probe into what police described as a "well-organis...