Uruguay suspended COVID-19 vaccines for children under 13 after a judge on Thursday issued an injunction halting vaccinations in that age group until government officials turn over contracts between Pfizer and the Uruguayan government.

Uruguayan government officials and Pfizer were ordered on Wednesday to appear in court after judge Alejandro Recarey gave them 48 hours to present detailed information on Pfizer’s COVID-19 vaccine while the court considered an injunction request to halt COVID-19 vaccinations for children 5 and older.

The government said a confidentiality clause in the contract prevents it from producing the documents, The Washington Post reported.

According to ABC News, the judge received answers to 18 questions about the safety and chemical composition of COVID-19 vaccines, signed by Health Minister Daniel Salinas, but did not turn over the contracts.

It is unknown whether the answers provided by government officials adequately addressed the questions posed by the judge, who ultimately ordered an injunction based on what was provided.