A man who committed suicide in a downtown luxury high-rise tonight also caused a hazardous-material scare with the chemical he used to kill himself, authorities said.

The 12th-floor resident in the 1600 Glenarm Place Apartments used hydrogen cyanide, said Denver Fire spokesman Phil Champagne.

The residents in the apartment below him saw a liquid dripping through their vents at about 7 p.m., he said.

The 11th and 12th floors were evacuated immediately, and police were monitoring other floors. No one outside the building was ever at risk, Champagne said.Glenarm Place is a 33-story building with 330 units.

Two residents were taken to the hospital, but their conditions were not immediately known.

Hydrogen cyanide is a poisonous, flammable liquid used in industrial processes and has a history in chemical warfare.

No information about the man was released. He was found dead in his closet, Champagne said.