71.   On Friday, a cooking gas canister filled with explosives, screws and bolts exploded near a metro station in southern Paris on Friday.

72.   Officials said police were studying tapes from surveillance cameras of the busy Duomo metro station.

73.   Several new metro stations are also being built on the outskirts of Moscow.

74.   Soldiers, police and paratroopers patrol bridges, important buildings, even metro stations.

75.   Several metro stations were flooded and remained closed Friday.

76.   The bombing at a metro station station at the heart of Paris, the first in nine years, killed four people on the spot.

77.   The government deployed hundreds of police and security forces at metro stations and other public places.