Long Island residents are searching for a missing Centereach man who vanished without a trace.

Tom Kelsey was last seen at Katch, a restaurant in Venetian Shores Park in Lindenhurst nearly two weeks ago. Friends say they were with the 45-year-old when they say he told them he had to leave to go meet up with other friends and with a woman he met online. No one has heard from him since.

Friends organized a search party at Katch, and plan on retracing possible routes he took after he left there. They plan on going door-to-door, handing out fliers, asking neighbors if they saw anything and see if anyone has any surveillance video that might help the search.

Friends say he never showed up to work the day after they last saw him, and he never returned home. His phone goes right to voicemail, and there's been no sign of his car.

"People don't just disappear. It's not like a UFO came and took him away. Something happened," says Kelsey's friend Dina Love.

Police are asking anyone with information to call the Sixth Squad at (631) 854-8652 -- or 911.