The siege of Thala, part of the Jugurthine War, was an invasion of the Numidian town of Thala by a Roman army. The Romans were commanded by the proconsul Quintus Caecilius Metellus, the Thalans by an unknown Numidian commander. The Romans' main objective was to capture the Numidian king Jugurtha who was reported to be in Thala, but he escaped before the legions reached the fortress town. Metellus then besieged the town to get hold of one of Jugurtha's treasuries which was stored in Thala. The fortress town was besieged for forty days after which most of its inhabitants committed suicide by setting fire to the town.