Detectives investigating the disappearance of Tia Sharp have charged her grandmother's partner with murder.
Stuart Hazell, 37, will appear in court on Monday accused of killing the 12-year-old, who went missing in New Addington, south London, over a week ago.
Tia's grandmother, Christine Sharp, has been released on bail, Scotland Yard said, alongside neighbour Paul Meehan, 39, who was arrested on suspicion of assisting an offender.
Stuart Hazell, 37, was found in the south London borough of Merton on Friday evening, hours after police launched a manhunt for the suspect and warned members of the public not to approach him.
It came after investigators discovered a body at the home Hazell shares with Tia's grandmother Christine Sharp near Croydon.
Police reportedly removed the body, which is yet to be formally identified, from the terraced house late on Friday night after Hazell was taken into custody.
A post-mortem examination is due to conclude on Sunday.
The 12-year-old girl, who was reported missing on Friday August 3, was last seen alive at the property.
Meanwhile, police investigating the disappearance of Tia have admitted "human error" led to a delay in finding the body in her grandmother's house.
In total four scene examinations were made at the property on the New Addington estate, near Croydon, including a two hour search on August 5 which covered the location where the body was eventually discovered.