ALBUQUERQUE (AP) - One man was killed and another was injured when a temporary tower collapsed and the two fell more than 50 feet.

Thirty-two-year-old David Desjarlais, of Manitoba, Canada, was killed. Mike Merchant, of Hemphill, Texas, was critically injured.

Merchant works for Winco Powerline Services of Oregon.

The two were setting up an emergency repair tower as part of a demonstration for a power industry conference hosted by Public Service Company of New Mexico.

The accident happened shortly after hundreds of spectators had arrived to check out exhibits and demonstrations during the second day of the conference.

The federal Occupational Safety and Health Administration is investigating.

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