SAN FRANCISCO (CBS SF) – A man thrown out of the emergency room of a San Francisco hospital allegedly retaliated by calling in a bomb threat Friday, police said Monday.

The 47-year-old suspect had been thrown out of the emergency room at St. Mary’s Medical Center on the 400 block of Stanyan Street by staff and security, according to police.

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The suspect then allegedly became angry and called in a threat around 6:40 a.m. Friday to “come back with heavy artillery and blow the hospital up,” police said.

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No one was injured, and no arrest had been reported as of Monday morning, according to police.

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