Ten people at an Oklahoma care facility for people with intellectual disabilities were hospitalized after they were apparently accidentally injected with what's believed to be insulin rather than flu shots, authorities said.

Emergency responders were called Wednesday afternoon to the Jacquelyn House in Bartlesville, about 40 miles (65 kilometers) north of Tulsa, on a report of an unresponsive person and found "multiple unresponsive people," Bartlesville Police Chief Tracy Roles said.

The facility had contracted with an experienced pharmacist to administer the influenza vaccine, Roles said, but all received injections of what's believed to be insulin instead. Roles said the pharmacist is cooperating with police but that investigators believe it was an accident.

The eight residents and two staff members were taken to a Bartlesville hospital, and officials said that all have either been released or will be soon.

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