Updated

Emergency management officials in Dover Borough say about 45 people at York County Prison have been taken to the hospital.

The York Daily Record says that a gas odor was reported late Wednesday night and that ambulances began taking people away. The newspaper says most of the victims appear to be female. The prison houses male and female inmates. It was not immediately known if those hospitalized include prison staff.

In tweets, emergency management officials say the patients are at York and Memorial hospitals. They say the prison is on lockdown.

Officials tell The Record that it may be some time before an official statement is released.

According to the county's website, the prison has an official capacity of 2,522.