11.   Clouds of dust billowed wherever anyone walked.

12.   Clouds of smoke billowed out of Catholic areas of Belfast, marking where more than a dozen hijacked cars and trucks were burning.

13.   Clouds of black billowed.

14.   Clouds of incense billowed through the monastery and thousands of Tibetans gathered outside to celebrate.

15.   Clouds of smoke billowed from the hills of Naameh where the Popular Front for the Liberation of Palestine-General Command has tunnels and fortifications overlooking the coastal highway.

16.   Clouds of smoke billowed overhead.

17.   Clouds of tear gas billowed into the air as riot police fought running battles with a hard core of militants who broke away from a peaceful mass march.

18.   Gas clouds were billowing from second-floor windows moments later.

19.   Gas clouds billowed from second floor windows moments later.

20.   Hours later, the oil depot was still ablaze and a huge, thick cloud of smoke billowed overhead.