The siege of Fort Medina took place in 1857 at Médine, on the left bank of the Senegal River in present-day Mali. The Toucouleur forces of Omar Saidou Tall unsuccessfully besieged native and French colonial troops commanded by Paul Holle. After 97 days of siege, a relief force under French Governor Louis Faidherbe lifted the siege and forced the Toucouleur army to retreat.