Looks like it's settling down a tad.
This is the current advisory;
Still Current at: 10 August 2005
Updated: 10 August 2005
Flag of Mauritania
Mauritania
This advice has been reviewed and reissued with amendments to the Summary, Political Situation, Local Travel and General sections. We no longer advise against all travel to Mauritania.
SUMMARY
* A coup occurred in Mauritania on 3 August. The situation in the country appears to have stabilised somewhat, but further instability cannot be ruled out. We advise that British nationals visiting Mauritania exercise caution, and pay close attention to developments in the country. Travellers should be flexible, and be prepared to alter their plans at short notice.
* There is no British diplomatic presence in Mauritania and you should register your presence with the British Honorary Consul in Nouakchott. You should inform the Honorary Consul if you intend to travel to areas outside the main cities of Nouakchott and Nouadhibou.
* Mauritania shares with the rest of the region a threat from international terrorism to visibly western and British interests. You should be aware of the global risk of indiscriminate attacks, which could be against civilian targets, including places frequented by foreigners.
* Travel in Mauritania can be difficult. Outside the main urban areas, there are currently only three paved roads. Conditions are otherwise poor for overland travel. Domestic flights operate between the main towns.
* We strongly recommend that you obtain comprehensive travel and medical insurance before travelling.