Plutarch wrote that the Carthaginian fleet confronted Pyrrhus when he was crossing the Strait of Messina to reach the mainland. He lost many ships in a naval battle. The Mamertine mercenaries, 10,000 of whom had crossed the strait, fought Pyrrhus in the mainland, threw his army into confusion and killed two elephants and many men in his rear-guard. Pyrrhus received a head wound, but managed to overcome the Mamertines. He arrived in Tarentum in the autumn of 276 BC with 20,000 men.