Four Iraqi civilians were killed and 31 others wounded on Saturday when British troops in Basra opened fire near a location where a British helicopter crashed earlier today in Al-Saee in Central Basra. A source of the Basra Police told KUNA that the British troops opened fire at some civilians who pelted the troops with stones near the location of the helicopter crash. It added that a curfew was declared from 8:00 pm till 6:00 am Sunday.Furthermore, a health official in Basra told KUNA that the 31 civilians who were wounded in the incident were rushed to nearby hospitals. Eyewitnesses said that two British tanks were set ablaze by demonstrators.