It said its fighters later found "around 20 gas canisters" that had been loaded onto the truck involved in the attack.
"It had false floor panels under it that were filled with 29 carbon dioxide canisters.
The use of chlorine in homemade bombs has been reported in several parts of Iraq and Syria, with car and roadside bombs easy to rig with chlorine canisters.
Sharen laughed, "I think it's a bit more than a threat!" For an hour or so, they listened to the explosions of gas canisters, the falling trees and the screams of dying animals in the bush.
Now that subsidies on cooking-gas canisters for 140m households have been abolished, he explains, suppliers no longer have an incentive to divert cheap gas to commercial users.
The response came with water cannons and tear gas, in some cases canisters fired straight at people.
Canisters are sold at market prices, and residents get cash subsidies paid to them directly.
The department has spent $173,000 since August on tear gas, plastic handcuffs, smoke grenades and canisters, rubber bullets, beanbag bullets and pepper balls.
This marked a retreat from her previous position that the FBI used only non-incendiary (so-called "Ferret") tear gas canisters.
Ms Reno, who oversees the FBI, contends that only two pyrotechnic canisters were used, hours before the fire began, and that the Justice Department has therefore not changed its long-held position that the Branch Davidians set fire to the compound themselves in order to commit mass suicide.
I am surprised by the number of black-clad women sporting traditional headgear on board, many of them clutching empty plastic canisters.
