Hurricane Erin exploded in strength to a Category 5 storm in the Caribbean on Saturday, rapidly powering up from a tropical storm in a single day, the National Hurricane Center said.

It quickly powered up from a tropical storm to a Category 5 in a single day, the National Hurricane Center said.

MIAMI (AP) — Erin became a Category 3 hurricane in the Caribbean early Saturday and is expected to strengthen further during the day, the National Hurricane Center reported. The storm is currently 170 miles (275 kilometers) northeast of Anguilla with maximum sustained winds of 120 mph (195 kph). It is moving west-northwest at 20 mph (31 kph).