BLOOMFIELD HILLS, Mich.  An 860-student Catholic school was evacuated after some children became sick during a church service Wednesday, authorities said. At least two were taken to the hospital.
St. Hugo of the Hills Catholic School shut down classes shortly after 9 a.m. when at least three students passed out, said Bloomfield Hills Public Safety Director Rick Matott. Two of the children were taken to local hospitals, but their conditions were not believed to be serious, Matott told WJBK-TV.
Emergency medical crews and hazardous materials teams were sent to the school about 15 miles northwest of Detroit. Officials worked to determine what caused the children to become ill.
Bloomfield Hills fire crews could not find any indication that carbon monoxide was the cause, Matott said.
Students and staff walked across the street to Oakland Community College where parents were directed to pick up their children.
Location of MichiganA Catholic school in Michigan, United States was evacuated today after several students became sick during a church service.

Bloomfield Hills Public Safety Director Rick Matott said St. Hugo of the Hills Catholic School evacuated its 860 students around 9 a.m. EDT today. At least three children had passed out during the church service. Two children reportedly had to be taken to area hospitals.

Medical crews and hazardous material experts responded to the school to determine the cause of the illness. However, it is still not known what caused the students to become sick.

Students walked to the nearby Oakland Community College campus while they waited for their parents to pick them up.

St. Hugo of the Hills Catholic School is about 15 miles northwest of Detroit.