Hurricane Matthew claims four lives in U.S., sparks flash-flood fears

At least four persons have been killed by hurricane Matthew in Florida as the storm drenched the nation with rains and strong winds have pushed waves over the beaches.

According to the Meteorologists, storm surge in some areas had been measured at more than 4 feet.

CNN quoted Governor Rick Scott saying as "We are seeing impacts right now from St. Augustine to Jacksonville Beach. Unfortunately, this is going to continue through the night."

Flash-flood concerns have been raised due to hurricane Matthew.

A warning for parts of Nassau County, north of Jacksonville has been issued by the National Weather Service.

According to the National Hurricane Center, "the combination of a dangerous storm surge, the tide and large and destructive waves will cause normally dry areas near the coast to be flooded by rising waters moving inland from the shoreline."

Jacksonville's St. Johns River has been surrounded by special concern as it could be overflowed by water pushed into it by the storm. The hurricane center said that a storm surge of 4.28 feet has been reported by the tide gauge.

After killing hundreds in Haiti and other Caribbean nations, Matthew's frightening power led to the deaths of four people in Florida.

More than 1 million people were left without power in Florida as the hurricane spent the day blowing north just offs the state's east coast.

Meanwhile the death toll crossed 800 in Haiti, which has also been hit by the hurricane Matthew.