A U.S. judge on Wednesday said she was leaning toward ordering a federal takeover of New York City's Rikers Island jail complex, after finding the city had failed to improve violent conditions that put inmates and staff at risk.

A judge ruled New York City is now in contempt over "grave" conditions at the Rikers Island prison complex, with a federal takeover of the system now seen increasingly as likely in a years-long legal battle.

The judge said the city had placed incarcerated people in “unconstitutional danger” by failing to comply with 18 separate provisions of court orders pertaining to security, staffing, supervision, use of force and the safety of young detainees.

A judge on Wednesday found New York City in contempt for failing to staunch violence and brutality at its jails, a scathing ruling that puts the troubled Rikers Island jail complex on the verge of a federal takeover.