Meanwhile, Carthage had recruited an army, which assembled in Africa and was shipped to Sicily. It was composed of 50,000 infantry, 6,000 cavalry and 60 elephants, and was commanded by Hanno, son of Hannibal; it was partly made up of Ligurians, Celts and Iberians. Five months after the siege began, Hanno marched to Akragas's relief. When he arrived, he merely camped on high ground, engaged in desultory skirmishing and trained his army. Two months later, in spring 261 BCE, he attacked. The Carthaginians were defeated with heavy losses at the Battle of Akragas. The Romans, under both consuls – Lucius Postumius Megellus and Quintus Mamilius Vitulus – pursued, capturing the Carthaginians' elephants and baggage train. That night the Carthaginian garrison escaped while the Romans were distracted. The next day the Romans seized the city and its inhabitants, selling 25,000 of them into slavery.