Up to 2,100 children who were ripped from their families near the US-Mexico border during the Trump administration may still be separated from their parents, according to a Department of Homeland Security (DHS) report. That is prepared for US President Joe Biden.

The report found nearly 4,000 children were subjected to the Trump administration’s family separation policy. A Biden administration task force set up to reunite families has so far reunified just seven children.

Some of those children may have found a way to reunite with their parents, but the US government has no records documenting their reunifications, the Family Reunification Task Force created by Biden said in its first progress report, which was made public on Tuesday.

The report revealed that five of the migrant children who have yet to reunite with their parents remain in the custody of the Department of Health and Human Services (HHS) as officials have not been able to locate family members in the US willing to care for them.

DHS informed it is working to verify how many of the 2,137 children with no records of reunification are still separated from their parents.

So far, the task force has facilitated the reunification of seven families who had been separated under former US President Trump. DHS said it expects to facilitate the reunification of an additional 29 families in the coming weeks.

In related news, another media outlet reported that US border agents have been deployed to Cancún, Mexico, to surveil and detain travelers in the southern coastal city whom they suspect of being asylum seekers headed to the US.           Â