1. Interior of airport terminal pan to members of emergency services
2. Officers putting on protective suits
3. Various of officers entering suspected contaminated area
4. Cutaway of airport staff looking on
5. Officer entering suspected contaminated area
6. Superintendent David Gray in conversation with members of emergency services
7. SOUNDBITE: (English) Superintendent David Gray, New South Wales Fire Brigade "I was determined to call our hazardous materials section in to test the material to see that if in fact it was toxic or biological or any other."
8. Fire fighter carrying sealed black bags containing suspicious material to red casket
9. Casket being carried out of terminal by fire fighters
10. SOUNDBITE: (English) Superintendent David Gray, New South Wales Fire Brigade "We've determined that it was just a harmless powder substance. It was tested for biological capabilities. That was all basically discounted. Through the test we did, we realised it wasn't biological or toxic, but in fact completely harmless."
11. Fire fighters loading casket onto truck
Townsville - October 15, 2001
12. Members of decontamination squad outside State Development Centre
13. Cutaway of signs indicating danger zone
14. Officers putting on protective suits
15. Officers approaching building
16. Cutaway of decontaminating spray apparatus
17. Woman emerging from building with officers
18. Various of office employees being decontaminated under spray apparatus
19. Woman entering security tent after being sprayed
Australia is on heightened alert for possible bioterrorism following several reported findings across the country of suspicious substances.
The state of alert came on Monday after a dozen cases of anthrax were detected in recent days in the United States.
Late on Sunday, part of Sydney Airport was cordoned off after a box with an unusual powder, which was later deemed harmless, was discovered by check-in staff.
In the northeastern city of Townsville on Monday, health authorities began investigating a possible case of anthrax, while two buildings were evacuated after mail containing a suspicious white powder was received.
Staff from the buildings were forced to pass through decontaminating showers and three people who came in contact with the powder were taken to hospital as a precaution.
Elsewhere, the U-S consulate in the southern Australian city of Melbourne was evacuated after a suspicious chemical, later found to be safe, was discovered in a hand-delivered letter.
Staff at the Australian Taxation Office in the nation's capital Canberra were similarly evacuated, while others at a Melbourne newspaper office and a Sydney post office were on alert.
Last week, Prime Minister John Howard warned that Australia could be a target for terrorists because of its staunch support of the U-S-led military strikes on Afghanistan.
But he said the government didn't believe there were any active terrorist cells in Australia.