NY Times reporter receives 'powdery substance'

A reporter for the New York Times has received an envelope containing a "powdery white substance".

The substance sent to Judith Miller is being tested by health authorities.

Miller, who was formerly stationed in the Middle East, is co-author of the book "Germ: Biological Weapons and America's Secret War."

After the envelope arrived, employees were moved out of the third-floor newsroom to other areas in the building, spokeswoman Christine Mohan said.

She added that the substance smelled like talcum powder.

Air tests for radioactive and chemical substances were negative.

The move came as the FBI investigates a fourth case of anthrax in the US after an NBC worker was tested positive.

The female employee is said to be doing well.