At about 5 p.m., search efforts were suspended after crews were unable to latch onto the vehicle, which was in about 30 feet of water. The water was too murky to even see the license plate or determine whether people were inside.
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The search will resume 10 a.m. Monday. The Cook County Sheriff's Office is leading the search.
At 12:30 p.m., a passerby reported that the vehicle, which they said had two people inside, went into the pond in the 3000-block of East Lincoln Highway. The passerby reported that a person surfaced screaming for help, but went under again.
Tire tracks leading into the water stretched about one-eighth of a mile. Officials said the vehicle was probably traveling about 60 feet before going into the water.
Shortly after 3 p.m., crews located the vehicle and divers went into the water. First responders rotated in and out of the water because of the frigid cold. Two of the divers were treated for hypothermia and released.
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The Chicago Fire Department sent their chopper to assist.
WATCH: DIVERS GO INTO WATER