A Queens County judge denied New York City corrections officers' request for a temporary restraining order Friday, after city lawyers argued that Mayor Bill de Blasio's public promise to end 24-hour shifts for officers rendered the unions' application moot.

In a lawsuit filed Thursday, unions representing corrections officers and their supervisors argued that 24-hour "triple shifts" are dangerous for officers, particularly amid the coronavirus pandemic. They also called for the city to require officers to obtain negative COVID-19 tests before they return to work from sick leave.

Steven Isaacs of Koehler & Isaacs, who is representing one of the three corrections unions involved in the action, said the unions are exploring their options for appeal and for a preliminary injunction.