Bobby Brown's Brother Arrested for Driving on a Suspended License

Allegedly driving under the influence runs in Bobby Brown's family -- TMZ has learned his older brother Tommy was arrested early this morning for misdemeanor DUI.

Brown was busted just after midnight by Cobb County PD. He was popped for speeding (a misdemeanor) and driving under the influence (also a misdemeanor).

He was booked into Cobb County Adult Detention and is being held on $1,650. Brown is still in custody.

For his part, Bobby has been convicted of DUI three times, most recently back in February.

Tommy appeared on "Being Bobby Brown" and "The Houstons: On Our Own." He was popped back in March for driving on a suspended license charge and improper passing of an emergency/towing/highway vehicle.