At least 2 dead in Cupertino quarry shooting

At least two people were killed Wednesday morning when a worker opened fire at a Cupertino quarry.

Another four people were badly wounded in the early morning shooting at Lehigh Permanente Cement Inc. and the suspect was not in custody, the Associated Press reported.

Officers in Santa Clara County report the shooter was on foot and may be armed with an AK-47, according to emergency service scanners.

Photos: Shooting at California quarry

KGO-TV in San Francisco reports an employee allegedly showed up at the morning safety meeting armed with an automatic rifle and handgun and began firing.

The shooter reportedly contacted police with a radio at the site and threatened to continue shooting, a TV station reported.

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-- From a Times staff writer