Corva Coleman

are under increasing strain.

NPR's Fatima al-Kassab has more.

You're listening to NPR News from Washington.

Wildfires continue to burn in northern Florida and southern Georgia.

Officials say a volunteer firefighter has died in Florida from a medical emergency while working on a brush fire.

In Georgia, officials say they're battling several fires too, including new ones that broke out over the weekend.

From member station WABE in Atlanta, Alex Helmick reports.

There are still two large Georgia fires burning out of control.

There have been deadly tornadoes this weekend in the central part of the U.S.

At least two people died when a tornado passed through towns near Dallas on Saturday.

There were more tornadoes reported in Kansas and Oklahoma yesterday.

One tornado confirmed by the National Weather Service hit the town of Columbus, Kansas, close to the border with Oklahoma.

There are no reports of injuries.

You're listening to NPR.

Live from NPR News in Washington, I'm Corva Coleman.

President Trump today is saying the U.S.

military will attack any boats putting new mines in the Strait of Hormuz.

Writing online, he says the U.S.

will step up its efforts to clear mines already in the Strait.

As NPR's Danielle Kurtzleben reports, Trump's threat came as U.S.-Iran peace talks remain in limbo.