Seamus Gray, 21, who is an active-duty member of the U.S. Navy, was seen leaving Ibiza, 17 North Genesee Street in Waukegan, early Saturday morning and walking away from the bar. | Provided Photos

Fire department crews are searching Lake Michigan in Waukegan for a missing 21-year-old U.S. Navy member who disappeared over the weekend as police release surveillance video of him.

The Waukegan Police Department received a report around 2 p.m. Tuesday for a missing person, according to Waukegan Deputy Police Chief Brian Mullen.

Mullen said the Waukegan Police Department Criminal Investigations Division began to investigate in an attempt to locate Seamus Gray, 21, who has not been seen since the early morning hours on Saturday.

Detectives learned Gray is a member of the United States Navy assigned to Naval Station Great Lakes in Lake County.

Gray did not report back to the base at his assigned time, Mullen said.

Detectives recovered video surveillance of Gray leaving Ibiza Bar, 17 North Genesee Street in Waukegan, around 1:35 a.m. Saturday, according to a police bulletin.

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He was seen on video by himself at the intersection of Sheridan Road and Washington Street in Waukegan around 1:40 a.m. Saturday.

Gray has not been seen or spoken to since leaving the bar, Mullen said.

The Waukegan Police Department and the Waukegan Fire Department conducted an extensive search of the area Gray was last seen and the surrounding area, including the lakefront.

The Waukegan Fire Department and Waukegan Police Department was back at the Waukegan Harbor, near the intersection of Madison Street and Pershing Road, Thursday morning to search Lake Michigan.

The Mutual Aid Box Alarm System (MABAS) was activated to bring sonar equipment and divers from numerous fire departments to the scene.

Mullen said an update on the case is expected later Thursday morning.

Gray was last seen wearing a light pink or red long-sleeve shirt and pants.

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Investigators have also been utilizing cell phone data in their attempt to search for Gray.

He has multiple tattoos on his left arm and a script tattoo on his ribcage.

Anyone with information on Gray’s disappearance is asked to contact the Waukegan Police Department tip line at 847-360-9001.

Tips can also be texted to 847411 by writing WPDTIP followed by the message.