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Lightning sprites spotted above Hurricane Matthew

There was an unusual sight as Hurricane Matthew moved over the Caribbean Sea this weekend.

The then-category 5 storm produced lightning sprites near Aruba and Colombia, the Weather Channel reported.

Sprites are weak bursts of energy that happened above an active thunderstorm, according to the American Meteorological Society. They are mostly red and coincidence with cloud-to-ground lightning. They are extremely difficult to capture in photos because they last just milliseconds.

Hurricane warnings for Jamaica, Cuba and Haiti remain in effect. The storm, with sustained winds of 145 mph, is expected to pass Haiti late Monday.