Tropical Storm Ivo strengthened into a hurricane on Wednesday as it headed over the Pacific toward Mexico's Baja California peninsula, the U.S. National Hurricane Center said.

Ivo had maximum sustained winds of 75 mph (120 kph) and was some 500 miles south of the peninsula's beach and golf resort Los Cabos, popular with U.S. visitors.

The latest forecasters' models showed the storm was due to curve into Baja California early next week, the center said.

Hurricane Henriette slammed into Los Cabos earlier this month, killing a foreign tourist. Two fishermen also died.

Henriette flooded northern Mexico with driving rain, raging over the farming states of Sonora and Sinaloa.