Authorities in Florida said Friday night that they had made an arrest after multiple cadets from the U.S. Military Academy in West Point, New York, overdosed on fentanyl-laced cocaine Thursday at a Florida rental home.

Details about the arrest were not immediately available but Wilton Manor, Florida, police and the Broward County Sheriff's Office said more details would eventually be made public. 

The incident began around 5 p.m. Thursday when first responders were called about multiple overdoses at a vacation rental home in Wilton Manors, where the West Point cadets were spending their spring break vacation, Fort Lauderdale Fire Battalion Chief Stephen Gollan said.

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"This is extremely alarming to us," he told reporters. "There were multiple people in cardiac arrest in the front yard." 

Authorities said later that six male cadets were hospitalized for a suspected overdose: Four cadets were transported to Broward General Medical Center and two cadets were taken to Holy Cross Hospital, they said.

In addition, one female at the scene was hospitalized, a statement from Wilton Manors police said.

Gollan said Narcan, a drug used by first responders to reverse symptoms of an overdose, was administered at the scene. Gollan said two of those who overdosed were sickened because they tried to give CPR to the initial overdose victims, according to FOX affiliate WSVN-TV of Miami.

Some of the patients regained their heartbeat after the Narcan but others were still in respiratory arrest when they were taken to hospitals.

"These are healthy young adults, college students in the prime of their life," Gollan said. "Getting this drug into their system, it's unknown what the recovery will be on the critical individual."

All six patients were men in their early 20s and were in town for spring break from the U.S. Military Academy, Miami's WTVJ-TV reported. Two remained hospitalized in critical condition. 

"The U.S. Military Academy is aware of the situation involving West Point cadets, which occurred Thursday night in Wilton Manors, FL. The incident is currently under investigation and no other details are available at this time," the West Point Public Affairs Office told Fox News Digital.

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After the incident, the Wilton Manors Police Department tweeted a warning to spring breakers about the dangers of illicit drugs.