1.   He said that even elite troops were housed in unheated buses and went without hot meals for days.

2.   Passengers, many without winter clothing or food, had huddled together for warmth on unheated buses since Friday.

3.   Passengers, many without winter clothing or food, huddled together for warmth on unheated buses.

4.   Passengers, many without winter clothing or food, huddled together for warmth on the unheated buses.