After an hour-long hearing in Texas’s 57th Civil District Court, Judge Antonia Arteaga granted a request for a temporary restraining order. San Antonio and Bexar County filed a lawsuit earlier Tuesday seeking to halt the directive.

“I don’t do this lightly,” Arteaga said during the hearing, according to local media. She said comments from the San Antonio medical director “weighed heavily” in her decision, along with the fact that the school year was already underway for many children.

“And those under 12, of course, as you know, don’t have access to the vaccine, and they’re already in school,” the judge said. “So I do find that this is emergent, I do find that it is necessary.”

The order is only effective until Monday, at which point the plaintiffs will go back to court to seek a longer-term extension. In the meantime, San Antonio and Bexar County will move to implement indoor masking requirements at city- and county-owned buildings and in public schools, officials said.