Typhoon Haiyan slammed into the central Philippines on Friday, killing at least four people, forcing hundreds of thousands from their homes and knocking out power and communications in several provinces.
Typhoon Haiyan is strengthening as it approaches the Philippines, with wind gusts of 162 mph, the equivalent of a Cat. 5 hurricane. Typhoon Haiyan is the strongest tropical cyclone in the world this year.
The decision by Filipino President Aquino to announce a terror warning on the eve of the annual Catholic procession, despite no specific threat, underscored the president's concern for public safety, say officials.