The greatest typhoon in the history of the world- Haiyan- smashed into Philippines, Friday. At least four casualties have been reported since.

Haiyan, a category 5 typhoon, is the largest storm ever to be recorded in the world, Reuters reported. The storm battered Leyte and Samar with wind gusts reaching 235 mph.

At least four people have been reported dead. Two were electrocuted, one died due to a fallen tree and the other was hit by lightning, USA Today reported.

Also called Yolanda in Philippines, Haiyan had winds reaching 190 - 195 mph when it made landfall. The previous record for devastating-storm-ever was held by Atlantic's Hurricane Camille in 1969, which slapped Mississippi with 190 mph winds.

Over a million people have already been evacuated. There is no power or transportation. According to Jeff Masters from Weather Underground, there is no contact with the city Guiuan, which got the first lashing.

At least 25 million people are on the path of the monster typhoon, which is expected to bulldoze its way to Vietnam and make landfall there by this weekend. Vietnam, however, won't be as severely affected as Philippines, CNN reported.

The super-typhoon is so large that at least two-third of Philippines is directly being affected by its clouds.

"Wind damage in Guiuan (population 47,000) must have been catastrophic, perhaps the greatest wind damage any city on Earth has endured from a tropical cyclone in the past century," Masters wrote in his blog.

NASA has been monitoring the typhoon's progress. A statement by Brian McNoldy, a Senior Research Associate at the University of Miami's Rosenstiel School of Marine and Atmospheric Science in Miami, Fla. gauges its fury.

"Haiyan has achieved tropical cyclone perfection. It is now estimated at 165kts (190mph), with an 8.0 on the Dvorak scale...the highest possible value," he said.

Twitter is flooded with devastating pictures of the typhoon as well.