The day went badly for the Romans, who were repeatedly outflanked by the Parthian cavalry. The next day they received a message, offering to negotiate with Crassus. A truce was proposed, allowing the Roman army to return to Syria safely, in exchange for Rome giving up all territory east of the Euphrates. Crassus was reluctant to meet with the Parthians, but his troops threatened to mutiny if he did not. At the meeting, a Parthian pulled at Crassus' reins, sparking violence. Crassus and his generals were murdered. After his death, the Parthians allegedly poured molten gold down his throat, in a symbolic gesture mocking Crassus' renowned greed. The remaining Romans at Carrhae attempted to flee, but most were captured or killed. Roman casualties amounted to about 20,000 killed and 10,000 captured, making the battle one of the costliest defeats in Roman history. Parthian casualties were minimal.