In Alexandria, Farouk appealed to Caffery for help, accusing the Free Officers of all being Communists. Despite the strained relations with Britain, Farouk also appealed to Britain to intervene; the "Black Saturday" riot had convinced the Churchill government that to intervene in Egypt would entail guerrilla warfare in the Nile river valley, which ruled out intervention. Ali Maher, who sided with the Free Officers and was appointed prime minister by them, arrived in Alexandria on 24 July to tell Farouk that the Free Officers wanted Nagiub to be War Minister and the dismissal of his "kitchen cabinet". On July 25, Farouk went with a machine gun by his side to the Ras El Tin Palace, driving his red Mercedes-Benz down the streets of Alexandria at high speed. The Ras El Tin Palace was located right by Alexandria harbor under the guns of the Egyptian Navy's warships, as the Navy had stayed loyal. Farouk had his loyal Sudanese Guard, which was 800 strong, build barricades around the palace. Late on the morning of 25 July, the palace was surrounded by troops loyal to the Free Officers, who attempted to storm it, only to be repulsed by the Sudanese Guard. Farouk, who was an expert marksman, used his hunting gun to kill four of the attackers himself as they sought to race across the palace grounds. After several hours of fighting, Caffery was able to arrange a ceasefire.