11.   The substance is being tested.

12.   The substance was being tested, and employees who work on the floor where the letter was discovered were evacuated for a time.

13.   Police released Davies and five others while the substance seized is tested to see if it is marijuana, said a police spokeswoman who declined to be identified.

14.   A state trooper was called to test the substance, which was found to be cocaine, she said.

15.   An exasperated national police chief, Sten Heckscher, admitted Wednesday that a laboratory machine needed to test the substance in the Stockholm bombing was broken.

16.   An exasperated national police chief, Sten Heckscher, had to admit Wednesday that a laboratory machine needed to test the substance in the Stockholm bombing was broken.

17.   Authorities were testing the substance.

18.   Base officials asked the federal Center for Disease Control and Prevention in Atlanta to test the substance.

19.   Chinese police said the substances were being tested.

20.   Customs officials planned to test the substance Friday.