As part of its probe into the kidney transplant racket whose alleged kingpin is Amit Kumar, the CBI carried out searches on Monday at six places in Gurgaon, his nursing home and guest house and took charge of three of his suspected accomplices arrested by UP police.

The agency, which is probing the inter-state and possible international ramifications of the racket, carried out the searches also at some other nursing homes, guest houses and residences at Gurgaon. The searches were conducted by seven CBI teams along with forensic experts.

The CBI questioned Kumar, who was remanded to the custody till February 22, for the third day in succession to ascertain about the foreign links. Kumar’s statements need to be corroborated before any further action could be taken, a CBI official, associated with the probe, said.