'Nigeria: the context for violence' (2006-2013)

[Stan]

A bit too soon to distiguish between BH, criminals or even the ordinary citizen.

Considering how many firearms are listed here for Nigeria, it does not come as a surprise that someone heard gunfire.

Odd this,

Security guard at Post 1 of the US embassy confirmed the incident in a telephone interview. The guard, speaking on the basis of anonymity, said gun fire was heard in the vicinity of the embassy and some commotion shortly after.

He added, however, that the situation has been taken care of and Nigeria police forces are on ground to maintain order. There were no casualties from the attacks, the security officer said.

Abuja police command spokesman, Jimoh Moshood, told press that he had no knowledge of arrests.

Not sure if you've ever attempted a conversation with Post One before (Marine Guards that is), but the above is highly unlikely to have taken place.