Updated on June 18, 2018.

Burlington Police Chief Brandon del Pozo could remain hospitalized "for a sustained period" after a serious bicycle crash Saturday in the Adirondacks, the city said in a press release.

The chief suffered a concussion, a broken collarbone, a broken right shoulder and road rash when he crashed on "a hill he has ridden many times" on Route 73 in Keene, N.Y., according to Katie Vane, a spokesperson for Mayor Miro Weinberger.

Del Pozo was taken by ambulance to a hospital in Saranac Lake, N.Y., before he was airlifted to the University of Vermont Medical Center. He remained in the intensive care unit, and doctors were "optimistic about a full recovery," the release said. Deputy Police Chief Jan Wright will serve as acting chief while del Pozo is sidelined.

Weinberger has twice visited del Pozo in the hospital and has been in touch with his wife, Vane said on Monday.

"The mayor reported that he had a great conversation with the chief in his visit Sunday night, and left very optimistic that the chief was on the mend," Vane said in a written message. "The chief is still in the ICU, although he is expected to be moved to a different section of the hospital relatively soon. We are not sure yet when he will be released from the hospital."