An inquiry following the death of murdered schoolgirl Tia Sharp said there were "missed opportunities" for authorities to engage with the 12-year-old's family.
The report by Merton Safeguarding Children Board said: "Merton Children's Social Care services received a number of referrals about Child A's family.
"These referrals arose from general concerns and there was no direct evidence of abuse or neglect, but the earlier referrals were not followed up thoroughly.
"These were missed opportunities to assess and try to engage with the family."
More top news
Donald Trump has "rattled" world leaders and they have good reason to feel that way, according to Barack Obama.
Hollywood film directors are being asked by the US government to help combat the allure of the so-called Islamic state on social media.
A cross-party group of politicians have teamed up to launch a campaign to "take a stand" against online abuse.