BUFFALO, N.Y. - The new John R. Oishei Children's Hospital has officially opened its doors to patients.

On Friday morning, the hospital began transferring patients from the Women and Children's Hospital of Buffalo to the new facility on the Buffalo Niagara Medical Campus.

Kaleida Health plans to have all patients moved into the new hospital within a 24 hour period. Officials are recommending that drivers avoid a one-mile radius around both the old and new hospitals, including Orchard Place, Summer, Main, Goodrich, Utica and Michigan Streets.