81.   Most of the seven bombings or bombing attempts in France since late July have been staged with gas canisters containing nuts, bolts and nails.

82.   Most residents use gas canisters for household purposes, and dozens of people are killed every year in the resulting explosions and fires.

83.   Officials have been unable so far to halt the firebombings, carried out with make-shift explosive devices using petrol or propane gas canisters.

84.   No group issued any warning or claimed responsibility for the blast, caused by a crude devise made using small gas canisters.

85.   Officials were investigating whether the bombs could have been crafted from cooking gas canisters or were more sophisticated.

86.   Officers fired gas canisters into the houses they raided to discourage resistance, but no gunshots were fired, Scotland Yard said.

87.   Officials said the explosion came from a gas canister loaded with nuts and bolts, similar to others planted since late July.

88.   On Monday, police arrested a man outside the Mexican Embassy after he set down a gas canister equipped with a firing device.

89.   Once the fighting begins, rebels are seen running down streets, hoisting the gas canisters that were used to demolish the municipal building and police barracks.

90.   One radio reporter was hit in the leg by a gas canister and was taken to a hospital.