In the United States, a bus driver was shot and killed in what may be the Washington sniper's latest attack.
Police launched a search of the scene after the shooting, but the killer appeared to have got away
Captain Nancy Demme said the investigation would proceed as if it were a confirmed Washington sniper attack
The police search caused rush hour chaos
The victim, a bus driver, died hours after the shooting in hospital in Bethesda
After an extensive search, police said that they had no new information to share with the public
The sniper is known to have killed nine people so far
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