The United States government has said that the warning issued to its citizens in Nigeria that Boko Haram planned to attack hotels frequently visited by Westerners in Abuja was credible and non-counterable.

At the daily press briefing of the State Department in Washington DC on Wednesday, Deputy Spokesperson of the department, Mark Toner, who was asked to explain the basis for the warning issued by the US embassy in Nigeria, said such emergency messages are issued, "when we deem a threat to any US citizen - safety - rather a threat to a US citizen's safety or security to be specific, credible, and non-counterable"

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