PHOENIX -- Authorities are searching for a missing scuba diver at Lake Pleasant near Phoenix.
Maricopa County Sheriff's officials say four people were diving off their pontoon boat near the old dam Thursday afternoon and one diver didn't return to the surface.
They say the diver was last seen about 2:45 p.m. and reportedly had about 140 minutes of oxygen left.
The name of the missing diver isn't immediately available.
Lake Pleasant is located about 35 miles northwest of Phoenix.
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