Cal/OSHA reported that a Napa field worker was killed Monday after becoming ensnared in a mechanical grape picker.

The incident occurred at Deconinck Vineyards, 1006 Monticello Road, Luke Brown, a public information officer with Cal/OSHA, reported Monday afternoon. Deconinck Vineyards operates as Beaucanon Estate.

The Napa County Coroner's office identified the worker as Leon Marcelo Lua, 49, of Napa. He was pronounced dead at 12:45 p.m.

No additional details were immediately available. Efforts to reach Beaucanon Estate were unsuccessful.

The initial call for medical help came from Cal Fire, officials said. Cal/OSHA has launched an investigation, Brown said.

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City Editor

Kevin has been city editor since September 2010. He joined the Register in 1973 as a reporter. He covered Napa City Hall and assorted other beats over the years. Kevin has been writing his Napa Journal column on Sundays since 1989.