In the ensuing United States occupation of Veracruz, 19 Americans were killed and 72 wounded. Mexican losses were estimated at 150 to 170 soldiers killed and between 195 and 250 wounded; an unknown number of civilians were killed. On the Pacific Coast of Mexico, US Naval units were monitoring the fight between Huerta's forces and the rebels while they protected US citizens and interests. In Ensenada, Baja California, US Consul Claude E. Guyant and 250 of his fellow citizens were forced to seek safety in the US consulate building, as Mexican authorities were powerless to control anti-American demonstrations that had erupted on April 23. Guyant cabled Washington, "Have taken refuge in consulate. Situation critical. Send warship immediately." USS "Cheyenne" was sent from San Diego, California, to Ensenada with orders to protect US lives at any cost, including capturing the port if necessary. USS "Iris," en route to Mazatlan, diverted course to Ensenada to assist "Cheyenne". They were to evacuate Guyant and other Americans. The welfare of approximately 50,000 US citizens living in Mexico was affected by the invasion of Veracruz. Refugee camps were set up in San Diego, Texas, and New Orleans to receive the Americans. Ultimately, the US military transport ship USS "Buford" sailed from San Francisco in early May and made stops at numerous ports on the west coast of Mexico to pick up additional American refugees. USS "Iris" also picked up numerous American refugees during May, including Clement Edwards, the US consul at Acapulco. By May 4, a total of 71 US Navy ships were operating in Mexican waters.