3 dead, more than 1 million without power after Hurricane Irma reaches southern Florida

Here are the latest updates on Hurricane Irma.

At least three people are dead and more than a million of homes and businesses are damaged or without power after Hurricane Irma reached southern Florida this weekend.

In its 5 a.m. update Sunday morning, the National Hurricane Center (NHC) said a storm surge warning was in effect in the Florida Keys, potentially bringing life-threatening floods 10-15 feet high and extreme winds up to 130 miles per hour.

"This is an extremely dangerous and life-threatening situation!" the National Weather Center in Key West wrote.

After barreling through Cuba and dying down to a Category 3 storm, Irma restrengthened to a Category 4 and hit the lower Florida Keys just after 7 a.m. ET Sunday. 

As of 9:10 a.m. ET, the eye of the storm had landed at Cudjoe Key in the lower Florida Keys, the National Hurricane Center said

For the next 34-46 hours, the storm will travel north and northwest, moving "somewhat erratically." Officials can't predict its exact path.

"The hurricane's track almost parallel to the west coast of Florida makes it very difficult to pinpoint exactly where Irma will cross the Florida Gulf coast," the agency says.

Much of southern Florida is under tornado warnings, and officials are warning residents that being in the eye of a hurricane can lead to a false sense of security.

More than a million homes and businesses were without power Sunday morning, with the majority of outages in Miami-Date County, the Weather Channel says, and millions more are expected to lose power.

Irma is also involved in at least three deaths so far, ABC News reports. A man in Monroe County, which encompasses Key West, was killed after he lost control of a truck during the storm Saturday afternoon, according to a Facebook post from the Monroe County Sheriff's Office.

Two other people died in a car crash in the rain in Hardee County, which is about 60 miles inland from Sarasota, the Florida Highway Patrol told ABC.

Nearly 7 million Floridians have evacuated, the Weather Channel says – that's roughly one-third of the state's population, and one of the largest emergency evacuations in American history, according to the New York Times.

But not everyone heeded evacuation orders, and some people will be stuck until emergency responders can get to them.

"You're on your own until we can actually get in there, and it's safe for our teams to support local and state efforts," Federal Emergency Management Agency chief Brock Long said in a statement obtained by the Miami Herald.

Anyone who calls for help Sunday on the Florida Keys will not receive a response, CBS12 in West Palm Beach says, as all emergency services have ended until at least Monday.

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