Police are questioning dozens of Central Washington University students to find out what sickened many of them at a party in Roslyn.

The university in Ellensburg is reviewing the conduct of students who were at the off-campus party. Sanctions could range from an alcohol education class to suspension or expulsion.

Campus police were notified by the Kittitas County sheriff's office and used vans early Saturday to bring 27 students back to residence halls.

At the party house in Roslyn Friday night, police found as many as 50 underage people, many of whom had been drinking alcohol that was apparently drugged. Twelve were treated at a hospital.

Police are waiting on test results to identify the drug.

THIS IS A BREAKING NEWS UPDATE. Check back soon for further information. AP's earlier story is below.

ELLENSBURG, Wash. (AP) — Police are questioning dozens of Central Washington University students to find out what sickened many of them at a party in Roslyn.

The university in Ellensburg is reviewing the conduct of students who were at the off-campus party. Sanctions could range from an alcohol education class to suspension or expulsion.

Campus police were notified by the Kittitas County sheriff's office and used vans early Saturday to bring 27 students back to residence halls.

At the party house in Roslyn Friday night, police found as many as 50 underage people, many of whom had been drinking alcohol that was apparently drugged. Twelve were treated at a hospital.

Police are waiting on test results to identify the drug.