GUATEMALA CITY (AP) — Guatemalan prosecutors raided the offices of the charity Save the Children on Thursday, citing a complaint alleging the violation of migrant children’s rights.

Prosecutor Rafael Curruchiche said in a video to media that the complaint filed by an unidentified foreigner had raised serious concerns because it involved allegations of abuse of children.

The raid came a week after the secretary general of Guatemala’s Public Ministry, Ángel Pineda, wrote a letter to Texas Attorney General Ken Paxton asking for support in addressing allegations that Save the Children and other aid groups “could be participating in child trafficking operations.”

Curruchiche said the raid was intended to search for any documents that might support the accusations. The prosecutor’s office did not say whether Paxton responded to the request.