- Associated Press - Thursday, February 19, 2015

LOS ANGELES (AP) - A hazardous materials team has given the all-clear at a downtown Los Angeles courthouse where a suspicious powder was found on a letter sent to a judge - the third such incident in two days.

The Los Angeles County Sheriff’s Department says nothing dangerous was found during an investigation by the hazmat team and the FBI on Thursday morning at the Stanley Mosk Superior Court.

There was no evacuation.

A sample of the powder was collected and will be analyzed.

The investigation comes a day after powder was found on similar letters sent to judges at courthouses in Van Nuys and Burbank.

Initial testing found that powder on at least one of those letters was boric acid, a common ingredient in pesticides that can be dangerous if swallowed.

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