The regional hospital system, Intermountain Healthcare, said on Twitter on Saturday that Dixie Regional Hospital in St. George, Utah, had 11 patients: Five were in critical condition and five were in serious condition. One patient had been discharged.

At Utah Valley Hospital in Provo, two patients remained in serious condition.

Other patients who were treated at Sevier Valley Hospital in Richfield and at Garfield Memorial Hospital in Panguitch had been discharged by Saturday afternoon, officials said.

The bus was carrying Chinese-speaking tourists, the Utah Highway Patrol said on Twitter. Its point of origin and destination were not immediately clear.

The agency on Saturday night identified the dead victims as Ling Geng, 68; Xiuyun Chen, 67; Zhang Caiyu, 62; and Zhongliang Caiyu, 65. They were all from Shanghai, China.

The Chinese Embassy in the United States said on Twitter that it had mobilized personnel and resources to help the victims’ families “and all other Chinese nationals involved in this accident.”