Jeb Bush, the former Florida governor and 2016 presidential candidate, praised President Donald Trump on Thursday for crippling Iran's ability to stoke instability in the Middle East.

But Bush, brother of former President George W. Bush, warned of a threat to the U.S. mainland from hundreds of kamikaze drones supplied to Cuba from Tehran.

In May, classified intelligence reportedly showed that Cuba had acquired more than 300 Shahed drones and discussed potential attack scenarios involving the U.S. naval base at Guantanamo Bay, U.S. military vessels, and Key West, Florida.

The drones have a range of up to 1,500 miles and can carry up to 110 pounds of explosives. They are relatively inexpensive to produce and have been used in devastating attacks. Florida is about 90 miles from Cuba — well within range of any drone attack.

“Iran has been a consistent threat to the united security interests of our country, certainly of Israel,” Bush said during a United Against Nuclear Iran event in Miami, according to the New York Post. “And now, we see that it’s not just Israel and the United States, but the Gulf region as well.

“I also want to point out that the press reports that there are 300 of these [Shahed drones] in Cuba.”

Iran has supplied Shahed drones to Russia, where they have become a potent weapon in the war against Ukraine.

Bush said the U.S. has “very good defense capabilities” to counter the drones, but cautioned that when they attack in clusters, they can penetrate sophisticated defense systems.

He described the drones as one of the deadliest battlefield threats faced by U.S. forces in recent years.

“Most loss of life of the U.S. military than any single weapon that exists over the last 15 years,” Bush said of the drones, according to the Post, citing an interview he gave to WTVJ-TV in Miami.

Rep. Carlos Gimenez, R-Fla., also attended the event, echoing Bush’s statements about Cuba having drones from Iran that can reach Florida “in a matter of minutes.”

“This is the face of warfare,” Gimenez said, according to the Post, noting how artificial intelligence is enhancing the threat. “This is how war is going to be carried out in the future, and it’s being carried out right now.”

Gimenez also warned that Cuba’s fleet of Shahed drones, which can travel at speeds of up to 115 mph, puts the U.S. naval base at Guantanamo Bay and cities throughout the southeastern U.S. within range of attack.

“This particular model, there is about over 100 pounds of explosives,” Gimenez told WTVJ, according to the Post. “That’s a pretty big bang. That’s why they call them kamikaze drones — they crash into their target and they explode.”

The warning comes amid a period of turmoil in Cuba. Trump imposed an oil blockade on the communist island earlier this year, sparking an energy crisis. Since then, Cuba has liberalized its economy by privatizing state-run companies and opening its banking and energy sectors to foreign investment.

The regime has also been hit with protests and internal strife over the energy crisis. According to the Post, Cuba suffered a nationwide power blackout Monday, its third major one of the year.