11.   Police suspected it was a prank, but were testing the powder.

12.   The Department of Health said the powder was being tested in England.

13.   The envelope was turned over to the FBI, which was testing the powder for anthrax, CBS News spokeswoman Sandy Genelius.

14.   The powder is being tested and the woman has been put under medical supervision, said Kairzhan Turezhanov, spokesman for the Emergency Situations Ministry.

15.   The powder was being tested, he said.

16.   The powder was tested and later found to be harmless, he said.