BURLINGTON, Vt. (AP) – One person died and six others were treated for carbon monoxide poisoning Sunday after a leak at an apartment building near the University of Vermont.

Emergency crews were called to the privately owned Redstone Apartments around noon on Sunday and found high levels of carbon monoxide inside the building, UVM spokesman Enrique Corredera said.

Jeffrey Rodliff, 23, of St. Johnsbury, Vt. , was found dead. Six others were hospitalized: Kerry Anne McCarthy, 20, of Montpelier; Matthew Eustice, 22, of South Plainfield, N.J.; Allyson Ricker, 20, of White River Junction; Matthew Scott, 24, of Calais; Liron Weiss, 23, an international student from Israel; and Ginger Aldrich, 22, of Waterford.

The six initially were taken to Fletcher Allen Health Care in Burlington but later were transferred to hospitals in Montreal, Boston and Syracuse, N.Y., for treatment in hyperbaric oxygen chambers.

McCarthy and Aldrich remained hospitalized Sunday night. The others were released to their families. McCarthy, Eustice, and Ricker are UVM students.

“We are shocked and saddened by this tragic situation and our thoughts are with the families of the victims,” Corredera said.

A preliminary investigation found that the building’s gas-fired hot water boiler malfunctioned, said John Wood, director of fire safety for the state fire marshal’s office. There were no carbon monoxide detectors in the building, he said.

Because carbon monoxide is odorless and colorless, there is no other way to identify a problem, he said.

“Although they’re not required by law, we recommend that people install carbon monoxide detectors,” he said. “They’re as important as smoke detectors.”

As a precaution, university officials evacuated about 200 residents from the apartment complex and sent them to local hotels for at least one night.

Two police officers and a maintenance worker who helped get the six people out of the building also were treated and released.

The apartments are owned and operated by Novarr-Mackesey of Ithaca, N.Y., on land leased from the university.

The hospitalized victims were transported to medical facilities in Boston, Syracuse, and Montreal for treatment. Several others, including a UVM police officer who responded to the scene, have also received treatment and have been released.

The 11-building Redstone complex has roughly 200 tenants, primarily UVM students. As a precaution, all occupants of the complex have been evacuated for at least 24 hours, or until the source of the problem has been clearly identified. All residents of the complex are being housed at the Sheraton and at other local hotels as needed. Residents and their families may call 656-3131 for further information.