HANKAMER, Texas - A La Porte man and his young grandson are dead after their small plane crashed in Chambers County, according to the sheriff's office .

Chambers County plane crash

What we know:

Officials say they were notified at about 10:30 p.m. Saturday about a possible downed aircraft near FM 1724 and I-10 in Hankamer .

They say Larry Motte from La Porte was flying with his grandson, who a Texas DPS sergeant says was a 14-year-old visiting from Austin.

According to the DPS sergeant, the two were flying a single-engine Rockwell Commander 114 aircraft out of the Baytown area.

The plane last transmitted data at about 5 p.m., showing a loss of altitude. A citizen alerted officials about the aircraft not coming back.

Chambers County officials launched a search for the aircraf

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