A four-star hotel in Greece's main northern city was evacuated Friday on a coroner's orders after two Greek guests died from carbon monoxide poisoning, local officials said.

The evacuation of the Nefeli Hotel in Thessaloniki's affluent Panorama district was ordered after the coroner confirmed the cause of death, local police said.

The two victims, aged 27 and 28, were in separate rooms but on the same wing, on the hotel's fourth and fifth floors. One of them died early Thursday, the other a day later.

Inspection teams from the city's Aristotelio University subsequently found high carbon monoxide levels on the premises.

In 2006, suspected carbon monoxide poisoning killed two British children at a four-star hotel on the Greek Ionian island of Corfu.

Robert and Christianne Shepherd died from respiratory failure after carbon monoxide apparently leaked into their bungalow room at the Louis Corcyra Beach Hotel from a faulty boiler.

Thirteen people including the hotel manager have been charged with manslaughter through negligence. The trial is ongoing.