"The US Embassy in Kinshasa works closely with the [government] of the DRC to respond to a terrorist threat against govt facilities. American in Kinshasa. The Embassy will be reopened to the public on Tuesday, Dec 4," the embassy tweeted:

U.S.Embassy Kinshasa?@USEmbKinshasa

 L’ambassade des États-Unis à Kinshasa travaille étroitement avec le gouv. de la RDC pour répondre à une menace terroriste contre des installations du gouv. américain à Kinshasa. L’ambassade sera réouverte au public le mardi 4 dec. Plus de détails ici: http://m.facebook.com/ambassadeusakinshasa/ …

The threat from a militant group with links with Islamic State led to the closure, VOA reported, quoting a US official who wanted to remain anonymous.The embassy’s website said all consular services on Tuesday will be "by appointment only".

US citizens have been asked to "keep a low profile".