PALM SPRINGS (CBS / AP) – Several people are hospitalized, four of them in critical condition, a day after a bus crash in Southern California killed 13 people.

Desert Regional Medical Center in Palm Springs said Monday that it’s treating the four critically injured, one person in serious condition and another in good condition. Another patient was transferred to Los Angeles.

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The region’s only trauma center received 14 injured victims after a tour bus slammed into the back of semi-truck Sunday on Interstate 10.

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Eisenhower Medical Center spokeswoman Lee Rice says the Rancho Mirage hospital is treating two people in good condition. The hospital received 12, nine of whom were released and one transferred in good condition.

John F. Kennedy Memorial Hospital spokesman Ken Alan says the Indio hospital treated and released five people for minor injuries.

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