Newly unsealed federal court documents are giving the clearest answers yet as to how a Slovak man in immigration custody escaped a Houston contract detention facility in March.

Ladislav Petro, 51, escaped from the Houston Contract Detention Facility on March 15, prompting about a 24-hour manhunt.

After his escape, a U.S. Immigration and Customs Enforcement spokesperson would not provide specifics on how Petro got out of the facility.