A man jumped to his death from the 86th floor observation deck of the Empire State Building tonight, police sources said.

The jumper, who was in his 20s, landed on the sidewalk by a bank branch on W. 34th Street near Fifth Avenue at about 6:30 p.m.

Police believe he was able to get over the barriers because there weren’t too many people on the deck due to rainy weather.

Jason Beck, 28, of Brooklyn was walking with a friend on the street when the tragedy occurred.

“My friend heard this really loud weird sound,” he said. “He turned around and saw someone splattered on the ground.”