Mauritanian president arrives Gambia to persuade Jammeh to step down
Jammeh is refusing to step down despite losing an election to challenger Adama Barrow.
State TV did not give any specific reason for the visit.
The Economic Community Of West African States has repeatedly called on leader Yahya Jammeh to respect the result of the December 1 election and step down after 22 years in power.
Jammeh on Tuesday declared a state of emergency as President-elect Adama Barrow, who is currently in Senegal, maintained his inauguration will go ahead as planned on Thursday on Gambian soil.