(NewsNation) — At least 36 people were treated for injuries at an airport in Honolulu after a Hawaiian Airlines flight coming from Phoenix, Arizona, experienced severe turbulence about 30 minutes outside of Honolulu, NewsNation affiliate KHON reports.

The Honolulu Emergency Medical Services and American Medical Response said they responded to a mass casualty emergency at the Daniel K. Inouye International Airport at around 11:06 a.m. Sunday.

According to reports, paramedics and EMTs treated 36 patients on the scene, and of those, 20 patients, ranging from adults to a 14-month-old, were transported to multiple hospitals for serious head injuries, loss of consciousness, cuts and bruises.

At least 11 people are in serious condition with nine listed in stable condition.

This is a developing story. Updates will be posted here.