Cristy Caserta, who appeared on Season 15 of The Bachelor in the US, has died at 38.
The Florida woman was in a class in the town of Sunrise when she suddenly slumped over her desk.
"The students around her noticed her coffee fell to the ground and thought maybe she fell asleep, but she was unresponsive when they approached her," Officer Fernandez said.
Her classmates called 911 and emergency responders gave her CPR after she suffered an apparent seizure.